APA (7th ed.) Citation

Smith, O. E., & May, I. M. (1976). Agricultural oral history interview with Oliver E. Smith. [publisher not identified].

Chicago Style (17th ed.) Citation

Smith, O. E., and Irvin M. May. Agricultural Oral History Interview with Oliver E. Smith. [Place of publication not identified]: [publisher not identified], 1976.

MLA (9th ed.) Citation

Smith, O. E., and Irvin M. May. Agricultural Oral History Interview with Oliver E. Smith. [publisher not identified], 1976.