APA-Zitierstil (7. Ausg.)

Roberts, A. D. (1956). Introduction to reference books (3. ed.). The Library Ass.

Chicago-Zitierstil (17. Ausg.)

Roberts, A. D. Introduction to Reference Books. 3. ed. London: The Library Ass, 1956.

MLA-Zitierstil (9. Ausg.)

Roberts, A. D. Introduction to Reference Books. 3. ed. The Library Ass, 1956.