Παραπομπή σε μορφή APA (7η εκδ.)

Carlstrom, N. W., & Saport, L. (2002). Before you were born. Eerdmans Books for Young Readers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Carlstrom, Nancy White, και Linda Saport. Before You Were Born. Grand Rapids, MI: Eerdmans Books for Young Readers, 2002.

Παραπομπή σε μορφή MLA (8th εκδ.)

Carlstrom, Nancy White, και Linda Saport. Before You Were Born. Eerdmans Books for Young Readers, 2002.