APA Alıntı

Hurd, R. G. (1980). Opportunities for incrasing crop yields. Pitman Publishing Ltd.

Chicago Stili Alıntı

Hurd, R G. Opportunities for Incrasing Crop Yields. London: Pitman Publishing Ltd, 1980.

MLA Alıntı

Hurd, R G. Opportunities for Incrasing Crop Yields. Pitman Publishing Ltd, 1980.