Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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