Style de citation APA (7e éd.)

Spedding, C. R. W. (1979). An Introduction to Agricultural Systems. Agricultural Science Publishers.

Style de citation Chicago (17e éd.)

Spedding, C. R. W. An Introduction to Agricultural Systems. London: Agricultural Science Publishers, 1979.

Style de citation MLA (9e éd.)

Spedding, C. R. W. An Introduction to Agricultural Systems. Agricultural Science Publishers, 1979.

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