Cita APA (7th ed.)

Dudge, R. E., & Kirchwey, C. B. (1913). The teaching of geography in elementary schools. Rand, McNally.

Cita Chicago (17th ed.)

Dudge, Richard Elwood, i Clara Barbara Kirchwey. The Teaching of Geography in Elementary Schools. Chicago: Rand, McNally, 1913.

Cita MLA (9th ed.)

Dudge, Richard Elwood, i Clara Barbara Kirchwey. The Teaching of Geography in Elementary Schools. Rand, McNally, 1913.