Cita APA (7th ed.)

del Mundo, A. (1983). Salesmanship. Home Study Program, University of Life.

Cita Chicago (17th ed.)

del Mundo, Amante. Salesmanship. Pasig City: Home Study Program, University of Life, 1983.

Cita MLA (9th ed.)

del Mundo, Amante. Salesmanship. Home Study Program, University of Life, 1983.