Geological survey research 1971.
-- Washington : United States Government Printing Office, 1971
- 4v. --
(Geological Survey Professional Paper ; 750).
Contiene : Vol. I. Chapter A. -- Vol. II. Chapter B. -- Vol. III. Chapter C. -- Vol. IV. Chapter D
Geología
55
Contiene : Vol. I. Chapter A. -- Vol. II. Chapter B. -- Vol. III. Chapter C. -- Vol. IV. Chapter D
Geología
55