Cita APA

Sinkankas, J. (1961). Prospecting for gemstones and minerals. Van nostrand.

Chicago Edition Citation

Sinkankas, John. Prospecting for Gemstones and Minerals. New york: Van nostrand, 1961.

Cita MLA

Sinkankas, John. Prospecting for Gemstones and Minerals. Van nostrand, 1961.