McGettrick, A. D., & Smith, P. D. (1983). Graded problems in computer science. Addison-Wesley Pub. Co.
Čikaški stil citiranja (17. izdanje)McGettrick, Andrew D., i Peter DeCost Smith. Graded Problems in Computer Science. London: Addison-Wesley Pub. Co, 1983.
MLA način citiranja (9. izdanje)McGettrick, Andrew D., i Peter DeCost Smith. Graded Problems in Computer Science. Addison-Wesley Pub. Co, 1983.
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