Style de citation APA

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

Style de citation Chicago

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

Style de citation MLA

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

Attention : ces citations peuvent ne pas être correctes à 100%.