APA (7th ed.) Citation

Petersen, M. L. a., Petersen, P. C. a., (curator), I. S. U. S. C. a. U. A., Blevins, B. L., & Moeller, D. W. (1995). Spring 1995, Peter Petersen & Mary Lou Petersen.

Chicago Style (17th ed.) Citation

Petersen, Mary Louet al, Peter C.et al Petersen, Iowa State University. Special Collections and University Archives (curator), Brian L. Blevins, and Donald W. Moeller. Spring 1995, Peter Petersen & Mary Lou Petersen. 1995.

MLA (9th ed.) Citation

Petersen, Mary Louet al, et al. Spring 1995, Peter Petersen & Mary Lou Petersen. 1995.