APA (7e ed.) Bronvermelding

Szarkowski, J. (1956). The idea of Louis Sullivan. University of Minnesota Press.

Chicago (17e ed.) Bronvermelding

Szarkowski, John. The Idea of Louis Sullivan. Minneapolis: University of Minnesota Press, 1956.

MLA (9e ed.) Bronvermelding

Szarkowski, John. The Idea of Louis Sullivan. University of Minnesota Press, 1956.