APA (7th ed.) Citation

(1949). Sharpen the sickle! The history of the Farm workers' union. London.

Chicago Style (17th ed.) Citation

Sharpen the Sickle! The History of the Farm Workers' Union. London, 1949.

MLA (8th ed.) Citation

Sharpen the Sickle! The History of the Farm Workers' Union. London, 1949.

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