APA (7th ed.) Citation

Watkins, C., & Marenka, B. (1994). Virtual reality ExCursions with programs in C. AP Professional.

Chicago Style (17th ed.) Citation

Watkins, Christopher, and Bernie Marenka. Virtual Reality ExCursions with Programs in C. Boston: AP Professional, 1994.

MLA (9th ed.) Citation

Watkins, Christopher, and Bernie Marenka. Virtual Reality ExCursions with Programs in C. AP Professional, 1994.