Andersen, H. O., & Koutnik, P. G. (1972). Toward more effective science instruction in secondary education. Macmillan [u.a.].
Chicago Style (17th ed.) CitationAndersen, Hans O., and Paul G. Koutnik. Toward More Effective Science Instruction in Secondary Education. New York [u.a.]: Macmillan [u.a.], 1972.
MLA (9th ed.) CitationAndersen, Hans O., and Paul G. Koutnik. Toward More Effective Science Instruction in Secondary Education. Macmillan [u.a.], 1972.
Warning: These citations may not always be 100% accurate.