APA-referens (7:e uppl.)

Barker, R. (1971). The status of agricultural development in South and SEA as a result of the new food grain technology. International Rice Research Institute.

Chicago-referens (17:e uppl.)

Barker, Randolf. The Status of Agricultural Development in South and SEA as a Result of the New Food Grain Technology. [Los Baños, Laguna: International Rice Research Institute, 1971.

MLA-referens (9:e uppl.)

Barker, Randolf. The Status of Agricultural Development in South and SEA as a Result of the New Food Grain Technology. International Rice Research Institute, 1971.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.