United States department of agriculture; Economic reserch service, Shoemaker, R., Harwood, J., & Day-Rubenstein, K. (2001). Economic issues in agricultural biotechnology: Agriculture information bulletin number 762.
Chicago-referens (17:e uppl.)United States department of agriculture; Economic reserch service, Robbin Shoemaker, Joy Harwood, och Kelly Day-Rubenstein. Economic Issues in Agricultural Biotechnology: Agriculture Information Bulletin Number 762. 2001.
MLA-referens (9:e uppl.)United States department of agriculture; Economic reserch service, et al. Economic Issues in Agricultural Biotechnology: Agriculture Information Bulletin Number 762. 2001.
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