APA (7th ed.) Citation

Youtie, H. C., Youtie, L. C., & Kneale, W. C. (1973). P. Mich. Inv. 2906, a Fragment of Logic.

Chicago Style (17th ed.) Citation

Youtie, Herbert Chayyim, Louise C. Youtie, and W. C. Kneale. P. Mich. Inv. 2906, a Fragment of Logic. 1973.

MLA (9th ed.) Citation

Youtie, Herbert Chayyim, et al. P. Mich. Inv. 2906, a Fragment of Logic. 1973.