Παραπομπή APA

Speed, B., Evans, K., & Gordon, K. (1997). General mathematics for GCSE: A complete course for the Intermediate tier. London: Collins Educational.

Παραπομπή Chicago Style

Speed, Brian, Kevin Evans, and Keith Gordon. General Mathematics for GCSE: A Complete Course for the Intermediate Tier. London: Collins Educational, 1997.

Παραπομπή MLA

Speed, Brian, Kevin Evans, and Keith Gordon. General Mathematics for GCSE: A Complete Course for the Intermediate Tier. London: Collins Educational, 1997.

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