| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Sheppard, R.A. and Gude, A.J. (1969c) Diagenesis of tuffs in the Barstow formation, Mud Hills, San Bernardino County, California. USGS Professional Paper 634, 35 pp.: 2-3, 14-16 Van Nostrand Reinholt Press: 382. |