Robert C. Gardner & Lambert, W. E. (1972). Attitudes and motivation in second-language learning. Newbury House Pub.
Čikaški stil citiranja (17. izdanje)Robert C. Gardner i Wallace E. Lambert. Attitudes and Motivation in Second-language Learning. Rowley, Mass: Newbury House Pub, 1972.
MLA način citiranja (9. izdanje)Robert C. Gardner i Wallace E. Lambert. Attitudes and Motivation in Second-language Learning. Newbury House Pub, 1972.
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