Παραπομπή APA

Elson, M. (1973). Concepts of programming languages: Instructor's guide. Chicago: Science Research Associates.

Παραπομπή Chicago Style

Elson, Mark. Concepts of Programming Languages: Instructor's Guide. Chicago: Science Research Associates, 1973.

Παραπομπή MLA

Elson, Mark. Concepts of Programming Languages: Instructor's Guide. Chicago: Science Research Associates, 1973.

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