"August 1996."Caption title.Includes bibliographical references (p. 4).Mode of access: Internet
Caption title.Includes bibliographical references (p. 2).Mode of access: Internet
"December 1996."Cover title.Includes bibliographical references (p. 161-257).Mode of access: Interne...
"Issued June 1934; revised February 1936."Caption title.Includes supplement.Mode of access: Internet...
"June 1973."Caption title.Includes bibliographical references.Mode of access: Internet
Distributed to depository libraries in microfiche."October 1984."Caption title.Bibliography: p. 8.Mo...
"September 1973."Caption title.Includes bibliographical references.Mode of access: Internet
"Contribution from the Bureau of Entomology."Caption title.Bibliography: p. 14.Mode of access: Inter...
"March 1989."Caption title.Includes bibliographical references (p. 8).Mode of access: Internet
"June 1986."Distributed to depository libraries in microfiche.Caption title.Bibliography: p. 9.Mode ...
"June 1983."Caption title."CANUSA, Canada/United States spruce budworm program."Distributed to depos...
"October 1989."Caption title.Includes bibliographical references.Mode of access: Internet
"December 1979."Caption title.Includes bibliographical references (p. 4).Mode of access: Internet
"June 1972."Caption title.Includes bibliographical references (p. 8).Mode of access: Internet
Caption title.Includes bibliographical references (p. 10-11).Mode of access: Internet
"November 1982.""November 1982."Distributed to depository libraries in microfiche.Caption title.Bibl...
Caption title.Includes bibliographical references (p. 2).Mode of access: Internet
"December 1996."Cover title.Includes bibliographical references (p. 161-257).Mode of access: Interne...
"Issued June 1934; revised February 1936."Caption title.Includes supplement.Mode of access: Internet...
"June 1973."Caption title.Includes bibliographical references.Mode of access: Internet
Distributed to depository libraries in microfiche."October 1984."Caption title.Bibliography: p. 8.Mo...
"September 1973."Caption title.Includes bibliographical references.Mode of access: Internet
"Contribution from the Bureau of Entomology."Caption title.Bibliography: p. 14.Mode of access: Inter...
"March 1989."Caption title.Includes bibliographical references (p. 8).Mode of access: Internet
"June 1986."Distributed to depository libraries in microfiche.Caption title.Bibliography: p. 9.Mode ...
"June 1983."Caption title."CANUSA, Canada/United States spruce budworm program."Distributed to depos...
"October 1989."Caption title.Includes bibliographical references.Mode of access: Internet
"December 1979."Caption title.Includes bibliographical references (p. 4).Mode of access: Internet
"June 1972."Caption title.Includes bibliographical references (p. 8).Mode of access: Internet
Caption title.Includes bibliographical references (p. 10-11).Mode of access: Internet
"November 1982.""November 1982."Distributed to depository libraries in microfiche.Caption title.Bibl...
Caption title.Includes bibliographical references (p. 2).Mode of access: Internet
"December 1996."Cover title.Includes bibliographical references (p. 161-257).Mode of access: Interne...
"Issued June 1934; revised February 1936."Caption title.Includes supplement.Mode of access: Internet...