Approaches to paleoecology / [papers from a symposium on the principles of paleoecology
organized for the annual meeting of the Paleontological Society at Cincinnati, Ohio,
November 2, 1961, edited by John Imbrie, Norman Newell, cop. 1964
Internet, http://authorities.loc.gov/, 2005-11-09
Internet, http://directory.brown.edu/search?search_string=Imbrie, 2005-11-09