APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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