Trade tests
Subtitle: the scientific measurement of trade proficiency
By: by J. Crosby Chapman ... with the assistance of Daisy Rogers Chapman, M. A. 
Contributors: Chapman, Daisy Rogers.
Publisher: H. Holt and company
Published: 1921
Place of publication: New York
Language: eng
Number of pages: 435
Subjects: Ability -- Testing.; Industrial efficiency.; Occupations.