APA (7th ed.) Citation

CALKINS, P. Why farmers plant what they do. Asia Vegetable Research and Development Centre.

Chicago Style (17th ed.) Citation

CALKINS, PETER. Why Farmers Plant What They Do. Asia Vegetable Research and Development Centre.

MLA (8th ed.) Citation

CALKINS, PETER. Why Farmers Plant What They Do. Asia Vegetable Research and Development Centre.

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