Style de citation APA (7e éd.)

Ristvet, L. (2007). In the Beginning. World history from human evolution to the first states (1a. Ediciòn.). Mc Graw Hill.

Style de citation Chicago (17e éd.)

Ristvet, Lauren. In the Beginning. World History from Human Evolution to the First States. 1a. Ediciòn. Estados Unidos: Mc Graw Hill, 2007.

Style de citation MLA (9e éd.)

Ristvet, Lauren. In the Beginning. World History from Human Evolution to the First States. 1a. Ediciòn. Mc Graw Hill, 2007.