Cita APA (7th ed.)

Perry, G. W., & Perry, P. (1969). Case-studies in teaching. Pitman.

Cita Chicago (17th ed.)

Perry, George W., i Pauline Perry. Case-studies in Teaching. London: Pitman, 1969.

Cita MLA (8th ed.)

Perry, George W., i Pauline Perry. Case-studies in Teaching. Pitman, 1969.