1. Beryllium resources of the tin-spodumene belt, North Carolina Author/Creator: Griffitts, Wallace R., author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1954 Format: Book Access & Availability: Loading
2. Beryllium resources of the tin-spodumene belt, North Carolina Author/Creator: Griffitts, Wallace R. Publication/Creation: Washington : [publisher not identified], 1954 Format: Book Access & Availability: Loading