APA
FRYER J. D., MAKEPEACE R. J., . (1972). Weed control handbook. V 2. Recommendations including plant growth regulators. Oxford: Blackwell.
Chicago
FRYER J D, MAKEPEACE R J, . 1972. Weed control handbook. V 2. Recommendations including plant growth regulators. Oxford: Blackwell.
Harvard
FRYER J. D., MAKEPEACE R. J., . (1972). Weed control handbook. V 2. Recommendations including plant growth regulators. Oxford: Blackwell.
MLA
FRYER J D, MAKEPEACE R J, . Weed control handbook. V 2. Recommendations including plant growth regulators. Oxford: Blackwell. 1972.