Case, Gerard R..
A Pictorial Guide to Fossils / - 1st ed / - New York-20 : Van Reinhold Company , 1982 - p.515,xii :
0-442-22651-9
Paleontology-Pictorial works
H6 / M2
A Pictorial Guide to Fossils / - 1st ed / - New York-20 : Van Reinhold Company , 1982 - p.515,xii :
0-442-22651-9
Paleontology-Pictorial works
H6 / M2