APA (7th ed.) Citation

Riddle, J. D., & May, I. M. (1978). Agricultural oral history interview with J.D. Riddle. [publisher not identified].

Chicago Style (17th ed.) Citation

Riddle, J. D., and Irvin M. May. Agricultural Oral History Interview with J.D. Riddle. [Place of publication not identified]: [publisher not identified], 1978.

MLA (9th ed.) Citation

Riddle, J. D., and Irvin M. May. Agricultural Oral History Interview with J.D. Riddle. [publisher not identified], 1978.