APA (7th ed.) Citation

Cope, E. D. (1904). The primary factors of organic evolution. The Open court publishing company.

Chicago Style (17th ed.) Citation

Cope, E. D. The Primary Factors of Organic Evolution. Chicago, London: The Open court publishing company, 1904.

MLA (9th ed.) Citation

Cope, E. D. The Primary Factors of Organic Evolution. The Open court publishing company, 1904.