APA Citation

Hay, R., & Porter, J. (2006). The physiology of crop yield. Singapur: Blackwell.

Chicago Style Citation

Hay, Robert, and John Porter. The Physiology of Crop Yield. Singapur: Blackwell, 2006.

MLA Citation

Hay, Robert, and John Porter. The Physiology of Crop Yield. Singapur: Blackwell, 2006.

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