Fisher, P. R., & Kley, R. J. (1969). Geologic investigations and engineering properties of craters: Project Pre-Gondola I ([1. edition].). Livermore, C.: Army Engineering Nuclear Cratering Group.
Chicago Style CitationFisher, Paul R., and Ronald J. Kley. Geologic Investigations and Engineering Properties of Craters: Project Pre-Gondola I. [1. edition]. Livermore, C.: Army Engineering Nuclear Cratering Group, 1969.
MLA CitationFisher, Paul R., and Ronald J. Kley. Geologic Investigations and Engineering Properties of Craters: Project Pre-Gondola I. [1. edition]. Livermore, C.: Army Engineering Nuclear Cratering Group, 1969.
Warning: These citations may not always be 100% accurate.