APA (7th ed.) Citation

Townsend, C. (1989). Mastering dBase IV programming. Tech Publ..

Chicago Style (17th ed.) Citation

Townsend, Carl. Mastering DBase IV Programming. Singapore: Tech Publ., 1989.

MLA (9th ed.) Citation

Townsend, Carl. Mastering DBase IV Programming. Tech Publ., 1989.

Warning: These citations may not always be 100% accurate.