Trích dẫn APA

John S Caldwell. (1986). Assessing rainy season vegetable production alternatives: A case study in "upstream" farming systems research. Taiwan: AVRDC.

Trích dẫn kiểu Chicago

John S Caldwell. Assessing Rainy Season Vegetable Production Alternatives: A Case Study in "upstream" Farming Systems Research. Taiwan: AVRDC, 1986.

Trích dẫn MLA

John S Caldwell. Assessing Rainy Season Vegetable Production Alternatives: A Case Study in "upstream" Farming Systems Research. Taiwan: AVRDC, 1986.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.