APA (7th ed.) Citation

Agar, W. E. (1943). A contribution to the theory of the living organism.

Chicago Style (17th ed.) Citation

Agar, W. E. A Contribution to the Theory of the Living Organism. Melbourne and London ; Melbourne university press in association with Oxford university press, 1943.

MLA (8th ed.) Citation

Agar, W. E. A Contribution to the Theory of the Living Organism. 1943.