APA Edition Citation

Gregory, P. H. (1974). Phytophthora disease of cocoa. Longman Group Ltd.

Chicago Edition Citation

Gregory, P H. Phytophthora Disease of Cocoa. London: Longman Group Ltd, 1974.

MLA Edition Citation

Gregory, P H. Phytophthora Disease of Cocoa. Longman Group Ltd, 1974.

Warning: These citations may not always be 100% accurate.