Verbeek, Earl R. books & textbook
Ultraviolet Light and Fluorescent Minerals: Understanding, Collecting and Displaying Fluorescent Minerals
Warren, Thomas S. Gleason, Sterling Bostwick, Richard C. Verbeek, Earl R.
Gem Guides Book Co /1999T Paperback / 209 Pages
isbn-10: 0963509802 / isbn-13: 9780963509802
KINK BANDS IN THE SOMPORT SLATES, WEST- CENTRAL PYRENEES, FRANCE AND SPAIN
Geol Soc Amer Bull /1978T Pamphlet
