Imlay, Ralph Willard 1908-1989
Ammonites of early cretaceous age (Valanginian and Hauterivian) from The Pacific coast statesss / by Ralph W. Imlay. -- Washington : United States Government Printing Office, 1960 - P. 167-228, [19] h. de lam. -- (Geological Survey Professional Paper ; 334-F).
Amonites fósiles
Estados Unidos
564.53(73)
Ammonites of early cretaceous age (Valanginian and Hauterivian) from The Pacific coast statesss / by Ralph W. Imlay. -- Washington : United States Government Printing Office, 1960 - P. 167-228, [19] h. de lam. -- (Geological Survey Professional Paper ; 334-F).
Amonites fósiles
Estados Unidos
564.53(73)