APA (7th ed.) Citation

Roberts, I. G. Comparative grammar: Critical concepts in linguistics. Routledge.

Chicago Style (17th ed.) Citation

Roberts, Ian G. Comparative Grammar: Critical Concepts in Linguistics. London: Routledge.

MLA (9th ed.) Citation

Roberts, Ian G. Comparative Grammar: Critical Concepts in Linguistics. Routledge.

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