first edition
[1941] · [Boston]
by O'CONNOR, Johnson
[Boston]: Human Engineering Laboratory Incorporated, [1941]. First Edition. Wrapper issue. Octavo (21.5cm.); publisher's salmon wrappers printed in mauve; [2],xi,[1],191pp. Wrappers rather dust-soiled, spine a bit faded, else Very Good. Authored by the creator of the aptitude test. (Inventory #: 38075)