APA (7th ed.) Citation

Risk, T. M. (1958). Principles and practices of teaching in secondary schools (3d ed.). American Book.

Chicago Style (17th ed.) Citation

Risk, Thomas Marion. Principles and Practices of Teaching in Secondary Schools. 3d ed. New York: American Book, 1958.

MLA (9th ed.) Citation

Risk, Thomas Marion. Principles and Practices of Teaching in Secondary Schools. 3d ed. American Book, 1958.