APA引文

Beer, J. (1981). Cordia alliodora with Theobroma cacao: A traditional agro-forestry combination in the humid tropics.

Citación estilo Chicago

Beer, John. Cordia Alliodora With Theobroma Cacao: A Traditional Agro-forestry Combination in the Humid Tropics. 1981.

MLA引文

Beer, John. Cordia Alliodora With Theobroma Cacao: A Traditional Agro-forestry Combination in the Humid Tropics. 1981.

警告：这些引文格式不一定是100％准确.