Cita APA (7th ed.)

Bali & D. R. (1989). Introduction to Philosophy (3rd ed.). Sterling Publishers.

Cita Chicago (17th ed.)

Bali i D. R. Introduction to Philosophy. 3rd ed. New Delhi: Sterling Publishers, 1989.

Cita MLA (9th ed.)

Bali i D. R. Introduction to Philosophy. 3rd ed. Sterling Publishers, 1989.