APA (7th ed.) Citation

Jacks, G. V., Brind, W. D., & Smith, R. (1955). Mulching. Commonwealth Agricultural Bureaux.

Chicago Style (17th ed.) Citation

Jacks, G. V., W. D. Brind, and Robert Smith. Mulching. Farnham Royal, Bucks: Commonwealth Agricultural Bureaux, 1955.

MLA (9th ed.) Citation

Jacks, G. V., et al. Mulching. Commonwealth Agricultural Bureaux, 1955.