Biographical Sources:

Medieval Philosophers
WCU General PN 451 .D5 v.115

British Philosophers, 1500-1799
WCU General PN 451 .D5 v.252

British Philosophers, 1800-2000
WCU General PN 451 .D5 v.262

American Philosophers before 1950
WCU General PN 451 .D5 v.270

American Philosophers, 1950-2000
WCU General PN 451 .D5 v.279

Fifty Key Contemporary Thinkers: From Structuralism to Post-Modernity
Ref B 804 .L37 1994

The Blackwell Guide to the Modern Philosophers: From Descartes to Nietzsche
Ref B791 .B53 2001

Handbooks & Manuals:

A Ready Reference to Philosophy East and West
REF B 72 .B34 1987

The Blackwell Guide to the Modern Philosophers: From Descartes to Nietzsche
REF B 791 .B53 2001

A Companion to the Philosophy of Mind
REF BD 418.3 .C62 1994

Fifty Key Contemporary Thinkers: From Structuralism to Postmodernity
REF B 804 .L37 1994

World Philosophy: Essay-Reviews of 225 Major Works, Volumes 1-5
REF B 29 .W68 1982

Guides:

The Philosopher's Guide to Sources, Research Tools, Professional Life, and Related Fields
REF B 53 .Z9 D445

Research Guide to Philosophy
REF B 52 .T5 1983