APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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