Principal federal sources of hydrologic data. May 1943.

This is the third in a series of reports on hydrologic data. The first, published in 1936 with the title, Deficiencies in hydrologic data, the second, in 1940, with title, Deficiencies in hydrologic research, were issued by the Special Advisory Committee on Standards and Specifications for Hydrologic Data of he National Resources Board and the National Resources Committee, respectively. cf. p.iv.Mode of access: Internet