Crossroads in the mind of man : a study of differentiable mental abilities / by Truman L. Kelley.

California : Stanford University Press, 1928.

vii, 238 pages : illustrations ; 23 cm

Includes bibliography and index

Copy 1 Supplier/Donor: Polytechnic of East London Note: Author's signed dedication to C. Spearman on front endpaper. Contains annotations. Formerly in the Spearman Collection of the Charles Myers Library at the N.I.I.P