APA-Zitierstil (7. Ausg.)

Berger, B. (1999). Grandfather Twilight (1. board book ed.). Philomel Books.

Chicago-Zitierstil (17. Ausg.)

Berger, Barbara. Grandfather Twilight. 1. board book ed. New York, NY: Philomel Books, 1999.

MLA-Zitierstil (9. Ausg.)

Berger, Barbara. Grandfather Twilight. 1. board book ed. Philomel Books, 1999.