Beiträge zur Psychotechnik
By: Alfons Helfenberger
Contributors: Universität Zürich
Publisher: C. Marhold
Published: 1928
Place of publication: Halle
Language: ger
Number of pages: 46
Notes: Reprint from "Deutsche Psychologie". v. 5, pt. 3.

Thesis (doctoral)--Universität Zürich, 1928.