Manual for the description of growth in age units
By: prepared by Willard C. Olson and Byron O. Hughes.
Contributors: Hughes, Byron Orville Scott, 1906- joint author.
Series: Michigan.  University.  Child Development Laboratories.
Publisher: Distributed by Edwards Letter Shop
Published: 1950
Place of publication: Ann Arbor
Language: eng
Number of pages: 28
Subjects: Growth.; Child development.
Notes: Bibliography: p. 28.
At head of title: Child Development Laboratories, University Elementary School, University of Michigan.
Errata slip inserted.