APA (7th ed.) Citation

Campbell, D. H. (1940). The evolution of the land plants <Embryophyta>. Stanford university press; H. Milford, Oxford university press.

Chicago Style (17th ed.) Citation

Campbell, Douglas Houghton. The Evolution of the Land Plants <Embryophyta>. Stanford University, Calif. : London: Stanford university press; H. Milford, Oxford university press, 1940.

MLA (9th ed.) Citation

Campbell, Douglas Houghton. The Evolution of the Land Plants <Embryophyta>. Stanford university press; H. Milford, Oxford university press, 1940.