Cita APA (7a ed.)

Palmer, F. R. (1984). Grammar (2nd ed.). Penguin Books.

Cita Chicago Style (17a ed.)

Palmer, F. R. Grammar. 2nd ed. London [etc.]: Penguin Books, 1984.

Cita MLA (9a ed.)

Palmer, F. R. Grammar. 2nd ed. Penguin Books, 1984.