APA (7th ed.) Citation

Lehmberg, W. H., & May, I. M. (1978). Agricultural oral history interview with W.H. Lehmberg. [publisher not identified].

Chicago Style (17th ed.) Citation

Lehmberg, William H., and Irvin M. May. Agricultural Oral History Interview with W.H. Lehmberg. [Place of publication not identified]: [publisher not identified], 1978.

MLA (9th ed.) Citation

Lehmberg, William H., and Irvin M. May. Agricultural Oral History Interview with W.H. Lehmberg. [publisher not identified], 1978.