Audio Archive

Introduction to Rocks and Minerals

Edmund, Rudy

Recorded in 1972

Added to the online collection June 2, 2019

01_Ed R 1972-01.mp3

Holden wishes to express appreciation to PLU, Pacific Lutheran University, for their support of the Holden Audio Archive Project.

February 18, 2025| there are 2316 presenters in the archive | there are 19581 recordings in the archive | welcome