APA (7th ed.) Citation

Webb, S., & Webb, B. P. (1921). The consumers' cooperative movement. Selbstverl.

Chicago Style (17th ed.) Citation

Webb, Sidney, and Beatrice Potter Webb. The Consumers' Cooperative Movement. Selbstverl, 1921.

MLA (9th ed.) Citation

Webb, Sidney, and Beatrice Potter Webb. The Consumers' Cooperative Movement. Selbstverl, 1921.

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