APA (7th ed.) Citation

Wardhaugh, R. (1993). Investigating language : central problems in linguistics / Ronald Wardhaugh: Central problems in linguistics. Blackwell.

Chicago Style (17th ed.) Citation

Wardhaugh, Ronald. Investigating Language : Central Problems in Linguistics / Ronald Wardhaugh: Central Problems in Linguistics. Oxford: Blackwell, 1993.

MLA (9th ed.) Citation

Wardhaugh, Ronald. Investigating Language : Central Problems in Linguistics / Ronald Wardhaugh: Central Problems in Linguistics. Blackwell, 1993.

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