Internet, alt.obituaries, consulté le 20-07-2005
Information trouvée : John Harold Ostrom was born in 1928 in New York City , John H. Ostrom, a paleontologist
died on Saturday, 16-07-2005
Stratigraphy and paleontology of the Cloverly Formation (Lower Cretaceous) of the
bighorn Basin Area, Wyoming and Montana, 1970