Cita APA (7th ed.)
Meyers, J. N. Vocabulary and spelling success in 20 minutes a day. Goodwill Pub.
Cita Chicago (17th ed.)
Meyers, Judith N. Vocabulary and Spelling Success in 20 Minutes a Day. New Delhi: Goodwill Pub.
Cita MLA (9th ed.)
Meyers, Judith N. Vocabulary and Spelling Success in 20 Minutes a Day. Goodwill Pub.
Atenció: Aquestes cites poden no estar 100% correctes.