1. The geologic history of the moon Author/Creator: Wilhelms, Don E. Publication/Creation: Denver, CO (Federal Center, Box 25425, Denver 80225) : For sale by the Books and Open-file Reports Section, U.S. Geological Survey Resource Type: Book Access & Availability: Loading
2. Geologic map of the Osiris (Jg-12) and Apsu Sulci (Jg-13) quadrangles of Ganymede Author/Creator: Wilhelms, Don E. Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading