Petersen, M. S., & Rigby, J. K. (1982). Interpreting earth history. WMC Brown.
Chicago Style (17th ed.) CitationPetersen, Morris S., and J. Keith Rigby. Interpreting Earth History. WMC Brown, 1982.
MLA (8th ed.) CitationPetersen, Morris S., and J. Keith Rigby. Interpreting Earth History. WMC Brown, 1982.
Warning: These citations may not always be 100% accurate.