APA (7th ed.) Citation

DuMont, P. A., (curator), I. S. U. S. C. a. U. A., & Grinnell, J. (1933). Philip DuMont letter to Joseph Grinnell regarding Savannah Sparrow identification, November 6, 1933.

Chicago Style (17th ed.) Citation

DuMont, Philip A., Iowa State University. Special Collections and University Archives (curator), and Joseph Grinnell. Philip DuMont Letter to Joseph Grinnell Regarding Savannah Sparrow Identification, November 6, 1933. 1933.

MLA (9th ed.) Citation

DuMont, Philip A., et al. Philip DuMont Letter to Joseph Grinnell Regarding Savannah Sparrow Identification, November 6, 1933. 1933.