APA (7e ed.) Bronvermelding

Baumeister, W. (1996). The Unknown in Art (1947). Theories and documents of contemporary art : A Sourcebook of Artists' Writings.

Chicago (17e ed.) Bronvermelding

Baumeister, Willi. "The Unknown in Art (1947)." Theories and Documents of Contemporary Art : A Sourcebook of Artists' Writings 1996.

MLA (8e ed.) Bronvermelding

Baumeister, Willi. "The Unknown in Art (1947)." Theories and Documents of Contemporary Art : A Sourcebook of Artists' Writings, 1996.