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A diagnostic test of aptitude for clerical office work.

APA Citation

Ruggles, A. Mead. (1924). A diagnostic test of aptitude for clerical office work. New York city: Teachers college, columbia univerity.

Ruggles, Allen Mead, 1881-. A Diagnostic Test of Aptitude for Clerical Office Work. New York city: Teachers college, columbia univerity, 1924.

Warning: These citations may not always be complete (especially for serials).