Mineralogical studies on Guatemalan jade /

by Foshag, William F., Foshag, William F.
Published 1957

Gems and gem mineral

by Foshag, William F., Foshag, William F.

Pre-columbian art /

by Bliss, Robert Woods 1875-, Bliss, Robert Woods 1875-, Lothrop, Samuel Kirkland 1892-1965, Foshag, William F., Mahler, Joy
Published 1957