APA (7th ed.) Citation

Clarke, L. H. . [. .. (1970). Trigonometry at ordinary level (2nd ed.). Heinemann.

Chicago Style (17th ed.) Citation

Clarke, L. Harwood []. Trigonometry at Ordinary Level. 2nd ed. London: Heinemann, 1970.

MLA (9th ed.) Citation

Clarke, L. Harwood []. Trigonometry at Ordinary Level. 2nd ed. Heinemann, 1970.

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