Cita APA (7th ed.)

Townsend, C. (1986). Mastering dBase III Plus: A step-by-step guide. Sybex.

Cita Chicago (17th ed.)

Townsend, Carl. Mastering DBase III Plus: A Step-by-step Guide. Berkeley, CA: Sybex, 1986.

Cita MLA (9th ed.)

Townsend, Carl. Mastering DBase III Plus: A Step-by-step Guide. Sybex, 1986.