APA (7th ed.) Citation

Wardhugh, R. (1972). Introduction to linguistics. McGraaw-Hill.

Chicago Style (17th ed.) Citation

Wardhugh, Ronald. Introduction to Linguistics. McGraaw-Hill, 1972.

MLA (8th ed.) Citation

Wardhugh, Ronald. Introduction to Linguistics. McGraaw-Hill, 1972.

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