Zen, E-An 1928-2014
Taconic stratigraphic names : definitions and synonyies / by E-An Zen. -- Washington : United States Government Printing Office, 1964 - 95 p. -- (Geological Survey Bulletin ; 1174).
Geología - Nomenclatores
55(083.72)
Taconic stratigraphic names : definitions and synonyies / by E-An Zen. -- Washington : United States Government Printing Office, 1964 - 95 p. -- (Geological Survey Bulletin ; 1174).
Geología - Nomenclatores
55(083.72)