Cita APA (7a ed.)

Chamberlain, M. I., & Johnson, K. A. L. (1984). Now for English. Course book 3 (1ª.). Thomas Nelson and Sons Limited.

Cita Chicago Style (17a ed.)

Chamberlain, Margaret Ilustradora, y Keith Autora Lobban Johnson. Now for English. Course Book 3. 1ª. 2-Hong Kong,China: Thomas Nelson and Sons Limited, 1984.

Cita MLA (9a ed.)

Chamberlain, Margaret Ilustradora, y Keith Autora Lobban Johnson. Now for English. Course Book 3. 1ª. Thomas Nelson and Sons Limited, 1984.