Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.