APA (7th ed.) Citation

National Research Council (U.S.). Highway Research Board. (1957). Agricultural soil maps status, July 1957: A revision of Bulletin 22 (1948). Highway Research Board.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Highway Research Board. Agricultural Soil Maps Status, July 1957: A Revision of Bulletin 22 (1948). Washington, D.C: Highway Research Board, 1957.

MLA (9th ed.) Citation

National Research Council (U.S.). Highway Research Board. Agricultural Soil Maps Status, July 1957: A Revision of Bulletin 22 (1948). Highway Research Board, 1957.