Cita APA (7th ed.)

Beardsley, E. L., & Beardsley, M. C. (1972). Invitation to philosophical thinking. Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

Beardsley, Elizabeth Lane, i Monroe C. Beardsley. Invitation to Philosophical Thinking. Harcourt Brace Jovanovich, 1972.