Group age and scientific performance
By: by Wallace Pierce Wells
Published: 1963
Language: eng
Number of pages: 199
Subjects: Social groups
Notes: Thesis (Ph. D.)--University of Michigan, 1963.

Includes bibliographical references.

Microfilm. Ann Arbor, Mich. : University Microfilms, 1963. 1 microfilm reel ; 35 mm.