APA Citation

Harlan, J. R. (1992). Crops & man.Jack. American Society of Agronomy.

Chicago Style Citation

Harlan, Jack R. Crops & Man.Jack. American Society of Agronomy, 1992.

MLA Citation

Harlan, Jack R. Crops & Man.Jack. American Society of Agronomy, 1992.

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