Cita APA (7a ed.)

Maurer, J. (2000). Focus on Grammar: An advanced course for reference and practice (2. ed.). Longman.

Cita Chicago Style (17a ed.)

Maurer, Jay. Focus on Grammar: An Advanced Course for Reference and Practice. 2. ed. New York: Longman, 2000.

Cita MLA (8a ed.)

Maurer, Jay. Focus on Grammar: An Advanced Course for Reference and Practice. 2. ed. Longman, 2000.