American Society of Agronomy & Jacobs, H. S. (1971). Soils laboratory exercise source book ([2nd ed.].). American Society of Agronomy.
Chicago Style (17th ed.) CitationAmerican Society of Agronomy and Hyde Spencer Jacobs. Soils Laboratory Exercise Source Book. [2nd ed.]. Madison, Wis.: American Society of Agronomy, 1971.
MLA (9th ed.) CitationAmerican Society of Agronomy and Hyde Spencer Jacobs. Soils Laboratory Exercise Source Book. [2nd ed.]. American Society of Agronomy, 1971.
Warning: These citations may not always be 100% accurate.