Kai Pefersen. (1963). Prehistoric life on earth. Eyre,metuuen.
Chicago Edition CitationKai Pefersen. Prehistoric Life on Earth. Eyre,metuuen, 1963.
MLA Edition CitationKai Pefersen. Prehistoric Life on Earth. Eyre,metuuen, 1963.
Warning: These citations may not always be 100% accurate.