Cita APA

Greenbaum, S. (1996). An introduction to English grammar. Longman.

Citación estilo Chicago

Greenbaum, Sidney. An Introduction to English Grammar. Harlow, Essex, Eng: Longman, 1996.

Cita MLA

Greenbaum, Sidney. An Introduction to English Grammar. Longman, 1996.

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