GMD | Video recording![]() |
Classification | AV551.7 C34 |
Publisher | Geological Society of America, Boulder, Colo., 1989 |
Subject | GeologyGeological time.Geology Colorado. |
Description | 1 videocassette (20 min.) : sd., col. ; 1/2 in. + 1 guide ([10] leaves : maps ; 28 cm.) |