Cita APA (7th ed.)

Association for Supervision and Curriculum Development & Squire, J. R. (1972). A new look at progressive education. s.n.

Cita Chicago (17th ed.)

Association for Supervision and Curriculum Development i James R. Squire. A New Look at Progressive Education. Washington, D.C: s.n, 1972.

Cita MLA (9th ed.)

Association for Supervision and Curriculum Development i James R. Squire. A New Look at Progressive Education. s.n, 1972.