APA (7th ed.) Citation

Metcalf, D. (1969). The economics of agriculture / by D. Metcalf. Penguin.

Chicago Style (17th ed.) Citation

Metcalf, D. The Economics of Agriculture / by D. Metcalf. Penguin, 1969.

MLA (9th ed.) Citation

Metcalf, D. The Economics of Agriculture / by D. Metcalf. Penguin, 1969.

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