Cita APA (7a ed.)

Wellman, W. R. (1947). Elementary radio servicing. D. Van Nostrand Company.

Cita Chicago Style (17a ed.)

Wellman, William R. Elementary Radio Servicing. New York [etc.]: D. Van Nostrand Company, 1947.

Cita MLA (9a ed.)

Wellman, William R. Elementary Radio Servicing. D. Van Nostrand Company, 1947.