Citazione Stile APA (7a Edizione)

Haeckel, E. H. P. A., Thomson, J. A., & Weismann, A. (1917). Evolution in modern thought. Boni and Liveright, inc.

Citazione stile Chigago Style (17a edizione)

Haeckel, Ernst Heinrich Philipp August, J. Arthur Thomson, e August Weismann. Evolution in Modern Thought. New York: Boni and Liveright, inc, 1917.

Citatione MLA (8a ed.)

Haeckel, Ernst Heinrich Philipp August, et al. Evolution in Modern Thought. Boni and Liveright, inc, 1917.