Cita APA (7th ed.)

RUSSON, A. R. Personality development for business.-- ed.4.

Cita Chicago (17th ed.)

RUSSON, Allien R. Personality Development for Business.-- Ed.4. Cicinnati, South-Western Pub, 1973.

Cita MLA (9th ed.)

RUSSON, Allien R. Personality Development for Business.-- Ed.4.