Cita APA

UNESCO, & Siegel, F. R. (1979). Review of research on modern problems in geochemistry. Paris: UNESCO.

Citación estilo Chicago

UNESCO, y F. R. Siegel. Review of Research On Modern Problems in Geochemistry. Paris: UNESCO, 1979.

Cita MLA

UNESCO, y F. R. Siegel. Review of Research On Modern Problems in Geochemistry. Paris: UNESCO, 1979.