APA (7th ed.) Citation

Dixon, R. M. W. (1965). What is language?: A new approach to linguistic description. Longman.

Chicago Style (17th ed.) Citation

Dixon, Robert Malcolm Ward. What Is Language?: A New Approach to Linguistic Description. London: Longman, 1965.

MLA (8th ed.) Citation

Dixon, Robert Malcolm Ward. What Is Language?: A New Approach to Linguistic Description. Longman, 1965.