APA

Proceedings of the Conference on Aquatic Weeds and Their Control, . (1981). Aquatic Weeds and their control. Great Britan: Association of Applied Biologists; Association of Drainage Authorities.

Chicago

Proceedings of the Conference on Aquatic Weeds and Their Control, . 1981. Aquatic Weeds and their control. Great Britan: Association of Applied Biologists; Association of Drainage Authorities.

Harvard

Proceedings of the Conference on Aquatic Weeds and Their Control, . (1981). Aquatic Weeds and their control. Great Britan: Association of Applied Biologists; Association of Drainage Authorities.

MLA

Proceedings of the Conference on Aquatic Weeds and Their Control, . Aquatic Weeds and their control. Great Britan: Association of Applied Biologists; Association of Drainage Authorities. 1981.