APA (7th ed.) Citation

Mann, M., Derrick, C., & Lask, I. M. (1966). At the gates of Moscow. A Panther Book.

Chicago Style (17th ed.) Citation

Mann, Mendel, Christopher Derrick, and I. M. Lask. At the Gates of Moscow. London: A Panther Book, 1966.

MLA (9th ed.) Citation

Mann, Mendel, et al. At the Gates of Moscow. A Panther Book, 1966.