Invitation to philosophical thinking /
[by] Elizabeth L. Beardsley [and] Monroe C. Beardsley.

APA Citation

Beardsley, E. Lane., Beardsley, M. C. (1972). Invitation to philosophical thinking. New York: Harcourt Brace Jovanovich.

MLA Citation

Beardsley, Elizabeth Lane, and Monroe C Beardsley. Invitation to Philosophical Thinking. New York: Harcourt Brace Jovanovich, 1972.

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