International Paleontological Union & Westermann, G. E. G. Directory of palaeontologists of the world (excl. Soviet Union & continental China) (2d ed.).
Chicago Style (17th ed.) CitationInternational Paleontological Union and Gerd Ernst Gerold Westermann. Directory of Palaeontologists of the World (excl. Soviet Union & Continental China). 2d ed.
MLA (9th ed.) CitationInternational Paleontological Union and Gerd Ernst Gerold Westermann. Directory of Palaeontologists of the World (excl. Soviet Union & Continental China). 2d ed.
Warning: These citations may not always be 100% accurate.