APA (7th ed.) Citation

Collectors' Institute, Powell, L. C., & Hanna, A. (1969). Commemorative brochure: Inaugural meeting, November 23, 1968. Collectors' Institute.

Chicago Style (17th ed.) Citation

Collectors' Institute, Lawrence Clark Powell, and Archibald Hanna. Commemorative Brochure: Inaugural Meeting, November 23, 1968. Austin, Texas: Collectors' Institute, 1969.

MLA (9th ed.) Citation

Collectors' Institute, et al. Commemorative Brochure: Inaugural Meeting, November 23, 1968. Collectors' Institute, 1969.