APA (7th ed.) Citation

Gegenbaur, C., Lankester, E. R. S., & Bell, F. J. (1878). Elements of comparative anatomy. Macmillan.

Chicago Style (17th ed.) Citation

Gegenbaur, C., E. Ray Sir Lankester, and F. J. Bell. Elements of Comparative Anatomy. London: Macmillan, 1878.

MLA (8th ed.) Citation

Gegenbaur, C., et al. Elements of Comparative Anatomy. Macmillan, 1878.