Petersen, P. C. a., & (curator), I. S. U. S. C. a. U. A. (1986). Form for reporting Iowa Christmas bird counts to Iowa Bird Life, Peter C. Petersen, December 21, 1986.
Chicago Style (17th ed.) CitationPetersen, Peter C.et al, and Iowa State University. Special Collections and University Archives (curator). Form for Reporting Iowa Christmas Bird Counts to Iowa Bird Life, Peter C. Petersen, December 21, 1986. 1986.
MLA (9th ed.) CitationPetersen, Peter C.et al, and Iowa State University. Special Collections and University Archives (curator). Form for Reporting Iowa Christmas Bird Counts to Iowa Bird Life, Peter C. Petersen, December 21, 1986. 1986.
Warning: These citations may not always be 100% accurate.