APA (7th ed.) Citation

Longford, F. P. (1974). The grain of wheat. Collins.

Chicago Style (17th ed.) Citation

Longford, Frank Pakenham. The Grain of Wheat. London: Collins, 1974.

MLA (8th ed.) Citation

Longford, Frank Pakenham. The Grain of Wheat. Collins, 1974.

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