Evans S. A., Fryer J. D., . (1968). Weed control handbook. 2 V in 3 parts. Oxford: Blackwell.
Evans S A, Fryer J D, . 1968. Weed control handbook. 2 V in 3 parts. Oxford: Blackwell.
Evans S A, Fryer J D, . Weed control handbook. 2 V in 3 parts. Oxford: Blackwell. 1968.
