APA (7th ed.) Citation

(1979). Certificate Mathematics: Unit M11 Circles. Heinemann Educational books.

Chicago Style (17th ed.) Citation

Certificate Mathematics: Unit M11 Circles. London: Heinemann Educational books, 1979.

MLA (9th ed.) Citation

Certificate Mathematics: Unit M11 Circles. Heinemann Educational books, 1979.

Warning: These citations may not always be 100% accurate.