APA (7th ed.) Citation

Riggs, J. K., May, I. M., & Lewis, R. D. (1976). Agricultural oral history interview with John K. Riggs. [publisher not identified].

Chicago Style (17th ed.) Citation

Riggs, John K., Irvin M. May, and R. D. Lewis. Agricultural Oral History Interview with John K. Riggs. [Place of publication not identified]: [publisher not identified], 1976.

MLA (9th ed.) Citation

Riggs, John K., et al. Agricultural Oral History Interview with John K. Riggs. [publisher not identified], 1976.