"December 1970"--Cover.Includes bibliographical references.Mode of access: Internet
"January 1978."Cover title.Includes bibliographical references.Mode of access: Internet
"February 1969"--Cover.Includes bibliographical references.Mode of access: Internet
"August 1949."Cover title.Includes bibliographical references.Mode of access: Internet
Based on work done in cooperation with the School of Mining Engineering of the University of Washing...
"February, 1977."Cover title.Includes bibliographical references (p. 38-40).Mode of access: Internet
"December 1938."Cover title.With: Sampling and testing coal and coke for plant design and operation....
"October 1970"--Cover.Includes bibliographical references.Mode of access: Internet
"March 1968"--Cover.Includes bibliographical references.Mode of access: Internet
"August 1970"--Cover.Includes bibliographical references.Mode of access: Internet
"January 1969"--Cover.Bibliographical references included.Mode of access: Internet
"April 1968"--Cover.Includes bibliographical references.Mode of access: Internet
"November 1970"--Cover.Includes bibliographic references.Mode of access: Internet
" ... Study made by Bureau of Mines in cooperation with University of Alabama and coal producers of ...
"October 1968"--Cover.Includes bibliographical references.Mode of access: Internet
Includes bibliographical references (p. 25-26) and index.Mode of access: Internet
"January 1978."Cover title.Includes bibliographical references.Mode of access: Internet
"February 1969"--Cover.Includes bibliographical references.Mode of access: Internet
"August 1949."Cover title.Includes bibliographical references.Mode of access: Internet
Based on work done in cooperation with the School of Mining Engineering of the University of Washing...
"February, 1977."Cover title.Includes bibliographical references (p. 38-40).Mode of access: Internet
"December 1938."Cover title.With: Sampling and testing coal and coke for plant design and operation....
"October 1970"--Cover.Includes bibliographical references.Mode of access: Internet
"March 1968"--Cover.Includes bibliographical references.Mode of access: Internet
"August 1970"--Cover.Includes bibliographical references.Mode of access: Internet
"January 1969"--Cover.Bibliographical references included.Mode of access: Internet
"April 1968"--Cover.Includes bibliographical references.Mode of access: Internet
"November 1970"--Cover.Includes bibliographic references.Mode of access: Internet
" ... Study made by Bureau of Mines in cooperation with University of Alabama and coal producers of ...
"October 1968"--Cover.Includes bibliographical references.Mode of access: Internet
Includes bibliographical references (p. 25-26) and index.Mode of access: Internet
"January 1978."Cover title.Includes bibliographical references.Mode of access: Internet
"February 1969"--Cover.Includes bibliographical references.Mode of access: Internet
"August 1949."Cover title.Includes bibliographical references.Mode of access: Internet