Cita APA

Palmer, F. (1971). Grammar (2nd ed.). Penguin Books.

Citación estilo Chicago

Palmer, Frank. Grammar. 2nd ed. Harmondsworth: Penguin Books, 1971.

Cita MLA

Palmer, Frank. Grammar. 2nd ed. Penguin Books, 1971.

Warning: These citations may not always be 100% accurate.