APA (7th ed.) Citation

Gardner, R. C., & Lambert, W. E. (1972). Attitudes and motivation in second-language learning. Newbury House.

Chicago Style (17th ed.) Citation

Gardner, Robert C., and Wallace E. Lambert. Attitudes and Motivation in Second-language Learning. Rowley, Mass.: Newbury House, 1972.

MLA (9th ed.) Citation

Gardner, Robert C., and Wallace E. Lambert. Attitudes and Motivation in Second-language Learning. Newbury House, 1972.