Crowder, B., & Davison, C. (1989). Soybeans: :Background For 1990 Farm Legislation (1. Edisyon.). Abd. Department Of Agriculture.
Chicago Style (17. basım) AtıfCrowder, Brad, ve Cecil Davison. Soybeans: :Background For 1990 Farm Legislation. 1. Edisyon. Washington: Abd. Department Of Agriculture, 1989.
MLA (9th ed.) AtıfCrowder, Brad, ve Cecil Davison. Soybeans: :Background For 1990 Farm Legislation. 1. Edisyon. Abd. Department Of Agriculture, 1989.
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