APA (7th ed.) Citation

Science Curriculum Improvement Study. (1968). Teacher's guide; Systems and subsystems (Preliminary ed.). Raytheon Education Co..

Chicago Style (17th ed.) Citation

Science Curriculum Improvement Study. Teacher's Guide; Systems and Subsystems. Preliminary ed. Lexington, Mass.: Raytheon Education Co., 1968.

MLA (9th ed.) Citation

Science Curriculum Improvement Study. Teacher's Guide; Systems and Subsystems. Preliminary ed. Raytheon Education Co., 1968.