APA citiranje

Sinclair, T. R. (1989). Crop development and soil conservation framework. PCARRD.

Chicago Style (17th ed.) Citation

Sinclair, Thomas R. Crop Development and Soil Conservation Framework. Laguna, Phils: PCARRD, 1989.

MLA citiranje

Sinclair, Thomas R. Crop Development and Soil Conservation Framework. PCARRD, 1989.