Christian, J. L. (1986). Philosophy: An introduction to introduction to the art of wondering. Holt, Rinehart and Winston.
Citazione stile Chigago Style (17a edizione)Christian, James L. Philosophy: An Introduction to Introduction to the Art of Wondering. Holt, Rinehart and Winston, 1986.
Citatione MLA (9a ed.)Christian, James L. Philosophy: An Introduction to Introduction to the Art of Wondering. Holt, Rinehart and Winston, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.