Cita APA

Shepherd, J., Rossner, R., & Taylor, P. (1986). Ways to grammar: A modern english practice book, key. London: McMillan.

Citación estilo Chicago

Shepherd, John, Richard Rossner, and Peter Taylor. Ways to Grammar: A Modern English Practice Book, Key. London: McMillan, 1986.

Cita MLA

Shepherd, John, Richard Rossner, and Peter Taylor. Ways to Grammar: A Modern English Practice Book, Key. London: McMillan, 1986.