Cita APA

International Union of Geological Society. (1993). Episodes,vol.16&17.

Chicago Edition Citation

International Union of Geological Society. Episodes,vol.16&17. International Union of Geological Society, 1993.

Cita MLA

International Union of Geological Society. Episodes,vol.16&17. 1993.

Atenció: Aquestes cites poden no estar 100% correctes.