APA (7th ed.) Citation

Easter School in Agricultural Science, Lycett, G. W., & Grierson, D. (1990). Genetic engineering of crop plants. Butterworths.

Chicago Style (17th ed.) Citation

Easter School in Agricultural Science, G. W. Lycett, and Donald Grierson. Genetic Engineering of Crop Plants. London ; Boston: Butterworths, 1990.

MLA (8th ed.) Citation

Easter School in Agricultural Science, et al. Genetic Engineering of Crop Plants. Butterworths, 1990.