Cita APA (7a ed.)

Barnard, H. C. (1949). Principles and practice of geografhy teaching. University Tutorial Press.

Cita Chicago Style (17a ed.)

Barnard, H. C. Principles and Practice of Geografhy Teaching. University Tutorial Press, 1949.

Cita MLA (8a ed.)

Barnard, H. C. Principles and Practice of Geografhy Teaching. University Tutorial Press, 1949.