De George, R. T. (1980). The philosopher's guide to sources, research tools, professional life, and related fields. Regents Pr. of Kansas.
Chicago-Zitierstil (17. Ausg.)De George, Richard T. The Philosopher's Guide to Sources, Research Tools, Professional Life, and Related Fields. Lawrence: Regents Pr. of Kansas, 1980.
MLA-Zitierstil (9. Ausg.)De George, Richard T. The Philosopher's Guide to Sources, Research Tools, Professional Life, and Related Fields. Regents Pr. of Kansas, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.