Carlstrom, N. W., & Saport, L. (2002). Before you were born. Eerdmans Books for Young Readers.
Chicago-viite (17. p.)Carlstrom, Nancy White, ja Linda Saport. Before You Were Born. Grand Rapids, MI: Eerdmans Books for Young Readers, 2002.
MLA-viite (8. p.)Carlstrom, Nancy White, ja Linda Saport. Before You Were Born. Eerdmans Books for Young Readers, 2002.
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