Duda, Rudolf frey50
Minerals of the world / Rudolf Duda - New York Arch Cape Press 1986 - 520 p.
05176800300
Minerals - Encyclopedia - Rocks
549 Dud 11
Minerals of the world / Rudolf Duda - New York Arch Cape Press 1986 - 520 p.
05176800300
Minerals - Encyclopedia - Rocks
549 Dud 11