APA (7th ed.) Citation

Purchase, H. G., & MacKenzie, D. R. (1990). Agricultural biotechnology: Introduction to field testing. Dept. of Information Services, Division of Agriculture, Forestry, and veterinary Medicine, Mississippi State University.

Chicago Style (17th ed.) Citation

Purchase, H. G., and David R. MacKenzie. Agricultural Biotechnology: Introduction to Field Testing. Mississippi: Dept. of Information Services, Division of Agriculture, Forestry, and veterinary Medicine, Mississippi State University, 1990.

MLA (9th ed.) Citation

Purchase, H. G., and David R. MacKenzie. Agricultural Biotechnology: Introduction to Field Testing. Dept. of Information Services, Division of Agriculture, Forestry, and veterinary Medicine, Mississippi State University, 1990.