Cita APA (7th ed.)

International Association of Geochemistry and Cosmochemistry & Siegel, F. R. (1979). Review of research on modern problems in geochemistry. Unesco.

Cita Chicago (17th ed.)

International Association of Geochemistry and Cosmochemistry i Frederic R. Siegel. Review of Research on Modern Problems in Geochemistry. Paris: Unesco, 1979.

Cita MLA (9th ed.)

International Association of Geochemistry and Cosmochemistry i Frederic R. Siegel. Review of Research on Modern Problems in Geochemistry. Unesco, 1979.