APA (7th ed.) Citation

Clarke, R. A. (1968). Biology by inquiry: Book 1, teacher's guide. Heinemann Educational Books.

Chicago Style (17th ed.) Citation

Clarke, Robert A. Biology by Inquiry: Book 1, Teacher's Guide. London: Heinemann Educational Books, 1968.

MLA (9th ed.) Citation

Clarke, Robert A. Biology by Inquiry: Book 1, Teacher's Guide. Heinemann Educational Books, 1968.