Cita APA (7a ed.)

Hartshorne, R. (1939). The nature of geography: A critical survey of current thought in the light of the past (4a ed.). Association Lancaster.

Cita Chicago Style (17a ed.)

Hartshorne, Richard. The Nature of Geography: A Critical Survey of Current Thought in the Light of the Past. 4a ed. Pennsylvania: Association Lancaster, 1939.

Cita MLA (9a ed.)

Hartshorne, Richard. The Nature of Geography: A Critical Survey of Current Thought in the Light of the Past. 4a ed. Association Lancaster, 1939.