Cita APA

Thralls, Z. A. n. 1., & Thralls, Z. A. n. 1. (1958). The teaching of geography. Nueva York: Appleton Century Crofts.

Citación estilo Chicago

Thralls, Zoe Agnes n. 1888, y Zoe Agnes n. 1888 Thralls. The Teaching of Geography. Nueva York: Appleton Century Crofts, 1958.

Cita MLA

Thralls, Zoe Agnes n. 1888, y Zoe Agnes n. 1888 Thralls. The Teaching of Geography. Nueva York: Appleton Century Crofts, 1958.