APA استشهاد

Friedman, F. L., & Koffman, E. B. (1977). Problem solving and structured programming in fortran. Addison-wesley publishing.

استشهاد بنمط شيكاغو

Friedman, Frank L., و Elliot B. Koffman. Problem Solving and Structured Programming in Fortran. Massachusetts: Addison-wesley publishing, 1977.

MLA استشهاد

Friedman, Frank L., و Elliot B. Koffman. Problem Solving and Structured Programming in Fortran. Addison-wesley publishing, 1977.