APA (7th ed.) Citation

Buber, M., Friedman, M. S., & Smith, R. G. (1965). The knowledge of man. Allen & Unwin.

Chicago Style (17th ed.) Citation

Buber, Martin, Maurice S. Friedman, and Ronald Gregor Smith. The Knowledge of Man. London: Allen & Unwin, 1965.

MLA (9th ed.) Citation

Buber, Martin, et al. The Knowledge of Man. Allen & Unwin, 1965.