Cita APA (7a ed.)

Reid, J. (1964). Effective letters: A program for self instruction. Mc Graw Hill.

Cita Chicago Style (17a ed.)

Reid, James. Effective Letters: A Program for Self Instruction. New York: Mc Graw Hill, 1964.

Cita MLA (9a ed.)

Reid, James. Effective Letters: A Program for Self Instruction. Mc Graw Hill, 1964.