Cita APA (7a ed.)

Moustakas, C. E., & Perry, C. (1973). Learning to be free. Prentice-Hall.

Cita Chicago Style (17a ed.)

Moustakas, Clark E., y Cereta Perry. Learning to Be Free. Englewood Cliffs, N.J.: Prentice-Hall, 1973.

Cita MLA (8a ed.)

Moustakas, Clark E., y Cereta Perry. Learning to Be Free. Prentice-Hall, 1973.