An objective approach to group-influencing fields
By: by Samuel Pomeroy Horton.
Contributors: Human Engineering Laboratory (U.S.)
Publisher: Human engineering laboratory, incorporated
Published: 1939
Place of publication: [Boston]
Language: eng
Number of pages: 106
Subjects: Characters and characteristics.; Ability -- Testing.; Vocational guidance.
Notes: "Second edition. First printing 5000 copies July 1939."
Pages 104-106, advertising matter.