APA (7e ed.) Bronvermelding

Pollack, B., & Stein, G. (1962). The collectors: Dr. Claribel and Miss Etta Cone / by Barbara Pollack. With a portrait by Gertrude Stein. Bobbs-Merrill.

Chicago (17e ed.) Bronvermelding

Pollack, Barbara, en Gertrude Stein. The Collectors: Dr. Claribel and Miss Etta Cone / by Barbara Pollack. With a Portrait by Gertrude Stein. Indianapolis, Ind. [u.a.]: Bobbs-Merrill, 1962.

MLA (8e ed.) Bronvermelding

Pollack, Barbara, en Gertrude Stein. The Collectors: Dr. Claribel and Miss Etta Cone / by Barbara Pollack. With a Portrait by Gertrude Stein. Bobbs-Merrill, 1962.