APA (7th ed.) Citation

Wynne, G. G., Andrien, H., & Schrock, A. E. (1975). Frankfurt through the centuries (Second edition 1975.). Kramer.

Chicago Style (17th ed.) Citation

Wynne, George G., Heidi Andrien, and Albert E. Schrock. Frankfurt Through the Centuries. Second edition 1975. Frankfurt: Kramer, 1975.

MLA (9th ed.) Citation

Wynne, George G., et al. Frankfurt Through the Centuries. Second edition 1975. Kramer, 1975.