Cook, A. (2000). American accent training (2nd ed.). Barron's.
Cita Chicago Style (17a ed.)Cook, Ann. American Accent Training. 2nd ed. Hauppauge, NY: Barron's, 2000.
Cita MLA (8a ed.)Cook, Ann. American Accent Training. 2nd ed. Barron's, 2000.
Precaución: Estas citas no son 100% exactas.