APA (7th ed.) Citation

Barrera, T. (1946). Guia geologica de Oaxaca. [publisher not identified].

Chicago Style (17th ed.) Citation

Barrera, Tomás. Guia Geologica De Oaxaca. Mexico: [publisher not identified], 1946.

MLA (9th ed.) Citation

Barrera, Tomás. Guia Geologica De Oaxaca. [publisher not identified], 1946.

Warning: These citations may not always be 100% accurate.