Tohutoro APA (7th ed.)

Grossmann, R. (1990). The Fourth Way: A Theory of Knowledge. Indiana University Press.

Tohutoru Kātū Chicago (17th ed.)

Grossmann, Reinhardt. The Fourth Way: A Theory of Knowledge. Bloomington: Indiana University Press, 1990.

Tohutoro MLA (9th ed.)

Grossmann, Reinhardt. The Fourth Way: A Theory of Knowledge. Indiana University Press, 1990.