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rocks & minerals Gold Creeks and Ghost Towns in BC
Gold! Gold!
Gold Creeks and Ghost Towns of NE WA
Guide to Rocks and Minerals of the Northwest
Shaped by the West Wind
Guide to Eastern Rocks and Minerals
Roches et minéraux canadiens
Deluxe Canadian Rocks & Minerals Kit
East Coast Fossils
Forest Soils
A Field Guide to Fossils
Planet Earth
How We Use Rocks and Minerals
How We Use Rocks and Minerals
Notre fabuleuse Terre
Gem Trails of British Columbia
Rock? Plant? Animal?
Mountain of Fire
Mountain of Fire
Kaboom! A Volcano Erupts