American Society of Agronomy, Crop Science Society of America, & Soil Science Society of America. (1978). Biological N fixation in forage-livestock systems. ASA.
Chicago Style (17th ed.) CitationAmerican Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. Biological N Fixation in Forage-livestock Systems. Madison: ASA, 1978.
MLA (9th ed.) CitationAmerican Society of Agronomy, et al. Biological N Fixation in Forage-livestock Systems. ASA, 1978.