APA (7th ed.) Citation

Ravskii, E. I., Tseitlin, S. M., & Chard, C. S. (1968). Geological periodization of the sites of the Siberian Palaeolithic. [s.n.].

Chicago Style (17th ed.) Citation

Ravskii, E. I., S. M. Tseitlin, and Chester S. Chard. Geological Periodization of the Sites of the Siberian Palaeolithic. [S.l.]: [s.n.], 1968.

MLA (9th ed.) Citation

Ravskii, E. I., et al. Geological Periodization of the Sites of the Siberian Palaeolithic. [s.n.], 1968.