APA (7th ed.) Citation

Heusinkveld, M. a., Heusinkveld, B. a., & (curator), I. S. U. S. C. a. U. A. (1981). Bill Heusinkveld and Marjorie Heusinkveld letter to Thomas H. Kent regarding field notes, December 3, 1981.

Chicago Style (17th ed.) Citation

Heusinkveld, Marjorieet al, Billet al Heusinkveld, and Iowa State University. Special Collections and University Archives (curator). Bill Heusinkveld and Marjorie Heusinkveld Letter to Thomas H. Kent Regarding Field Notes, December 3, 1981. 1981.

MLA (9th ed.) Citation

Heusinkveld, Marjorieet al, et al. Bill Heusinkveld and Marjorie Heusinkveld Letter to Thomas H. Kent Regarding Field Notes, December 3, 1981. 1981.