Tohutoro APA (7th ed.)
Greer, A. (1992). A complete GCSE mathematics: Higher course (3rd ed.). Stanley Thornes Ltd.
Tohutoru Kātū Chicago (17th ed.)
Greer, A. A Complete GCSE Mathematics: Higher Course. 3rd ed. Cheltenham, UK: Stanley Thornes Ltd, 1992.
Tohutoro MLA (9th ed.)
Greer, A. A Complete GCSE Mathematics: Higher Course. 3rd ed. Stanley Thornes Ltd, 1992.
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