APA (7th ed.) Citation

Sund, R. B., & Trowbridge, L. W. (1973). Teaching science by inquiry in the secondary school (2d ed.). Merrill.

Chicago Style (17th ed.) Citation

Sund, Robert B., and Leslie W. Trowbridge. Teaching Science by Inquiry in the Secondary School. 2d ed. Columbus, Ohio: Merrill, 1973.

MLA (8th ed.) Citation

Sund, Robert B., and Leslie W. Trowbridge. Teaching Science by Inquiry in the Secondary School. 2d ed. Merrill, 1973.