Wolfe Robin. (2008). Consonants work book. Scholastic.
Cita Chicago (17th ed.)Wolfe Robin. Consonants Work Book. New York: Scholastic, 2008.
Cita MLA (9th ed.)Wolfe Robin. Consonants Work Book. Scholastic, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.