APA (7th ed.) Citation

Warden, C. J., Jenkins, T. N., & Warner, L. H. (1934). Introduction to comparative psychology. Ronald Press Co.

Chicago Style (17th ed.) Citation

Warden, C. J., Thomas Nichols Jenkins, and Lucien Hynes Warner. Introduction to Comparative Psychology. New York: Ronald Press Co, 1934.

MLA (9th ed.) Citation

Warden, C. J., et al. Introduction to Comparative Psychology. Ronald Press Co, 1934.