R. P. · R.S. · R. Sharp · Robert P. · Robert S. · Robert Sharp
Mountain Press Publishing Company
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Geology: field guide to Southern California | 978-0-697-05030-4 (0-697-05030-0) | 1972 |
| Geology Underfoot in Death Valley and Owens Valley | 978-0-87842-362-0 (0-87842-362-1) | 1997 |
| Geology Underfoot in Southern California | 978-0-87842-289-0 (0-87842-289-7) | 1993 |