APA استشهاد

McGettrick, A. D., & Smith, P. D. (1983). Graded problems in computer science. Addison-Wesley.

استشهاد بنمط شيكاغو

McGettrick, Andrew D., و Peter D. Smith. Graded Problems in Computer Science. London ; Reading, Mass.: Addison-Wesley, 1983.

MLA استشهاد

McGettrick, Andrew D., و Peter D. Smith. Graded Problems in Computer Science. Addison-Wesley, 1983.