[et.al.], W. H. E. .. (1955). Geology: Principle and processes. McGraw Hill.
Chicago Style (17th ed.) Citation[et.al.], William H Emmons ... Geology: Principle and Processes. McGraw Hill, 1955.
MLA (8th ed.) Citation[et.al.], William H Emmons ... Geology: Principle and Processes. McGraw Hill, 1955.
Warning: These citations may not always be 100% accurate.