APA (7th ed.) Citation

Roberts, I. G. (1997). Comparative syntax (1. publ.). Arnold.

Chicago Style (17th ed.) Citation

Roberts, Ian G. Comparative Syntax. 1. publ. London [u.a.]: Arnold, 1997.

MLA (9th ed.) Citation

Roberts, Ian G. Comparative Syntax. 1. publ. Arnold, 1997.