APA (7th ed.) Citation

Pappas, G. S., Campbell, A., & Snoke, E. (1978). United States Army unit histories: 2. United States Army unit histories.

Chicago Style (17th ed.) Citation

Pappas, Georgios Sotiru, Alexandra Campbell, and Elizabeth Snoke. "United States Army Unit Histories: 2." United States Army Unit Histories 1978.

MLA (8th ed.) Citation

Pappas, Georgios Sotiru, et al. "United States Army Unit Histories: 2." United States Army Unit Histories, 1978.