Stevens, J. (1995). Tops & bottoms. Scholastic Inc.
Cita Chicago (17th ed.)Stevens, Janet. Tops & Bottoms. New York: Scholastic Inc, 1995.
Cita MLA (9th ed.)Stevens, Janet. Tops & Bottoms. Scholastic Inc, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.