APA-viite (7. p.)

Koffman, E. B., & Friedman, F. L. (1979). Problem solving and structured programming in BASIC. Addison-Wesley.

Chicago-viite (17. p.)

Koffman, Elliot B., ja Frank L. Friedman. Problem Solving and Structured Programming in BASIC. Reading: Addison-Wesley, 1979.

MLA-viite (9. p.)

Koffman, Elliot B., ja Frank L. Friedman. Problem Solving and Structured Programming in BASIC. Addison-Wesley, 1979.