APA (7th ed.) Citation

Henty, E. E., & Pritchard, G. H. (1975). Weeds of New Guinea and their control (2. ed.). Wilke.

Chicago Style (17th ed.) Citation

Henty, E. E., and G. H. Pritchard. Weeds of New Guinea and Their Control. 2. ed. Zillmere: Wilke, 1975.

MLA (9th ed.) Citation

Henty, E. E., and G. H. Pritchard. Weeds of New Guinea and Their Control. 2. ed. Wilke, 1975.