Cita APA (7th ed.)
Hillson, M., & Bongo, J. (1971). Continuous-progress education: A practical approach. Science Research Associates.
Cita Chicago (17th ed.)
Hillson, Maurie, i Joseph Bongo. Continuous-progress Education: A Practical Approach. Palo Alto, Calif.: Science Research Associates, 1971.
Cita MLA (9th ed.)
Hillson, Maurie, i Joseph Bongo. Continuous-progress Education: A Practical Approach. Science Research Associates, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.