A diagnostic test of aptitude for clerical office work, based on an analysis of clerical operations
By: by Allen Mead Ruggles ...
Publisher: Teachers college, Columbia university
Published: 1924
Place of publication: New York city
Language: eng
Number of pages: 85
Subjects: Ability; Testing; Clerks
Notes: Vita.

Published also as Teachers college, Columbia university. Contributions to education, no. 148.

Thesis (PH. D.)--Columbia university, 1924.