Cita APA (7a ed.)

Keeslar, O. (1946). Contributions of Instructional Films to the Teaching of High School Science. The Elements of Scientific Method.

Cita Chicago Style (17a ed.)

Keeslar, Oreon. Contributions of Instructional Films to the Teaching of High School Science. The Elements of Scientific Method. Florida, 1946.

Cita MLA (9a ed.)

Keeslar, Oreon. Contributions of Instructional Films to the Teaching of High School Science. The Elements of Scientific Method. 1946.