6 books • 3 series
Yorkshire Dales (Earthwise Discovering Geology Guidecards)
St.Paul's (Earthwise Discovering Geology Guidecards)
Westminster (Holiday Geology Guides)
Trafalgar Square (Earthwise Discovering Geology Guidecards)
Metamorphic Belts of Ecuador (Overseas Geology & Mineral Resources)
The Geology and Mineral Resources of the Bolivian Precambrian Shield (Overseas Geology & Mineral Resources)