Lock, G. (1996). Functional English grammar: An introduction for second language teachers. Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Lock, Graham. Functional English Grammar: An Introduction for Second Language Teachers. Cambridge ; New York: Cambridge University Press, 1996.
MLA način citiranja (8. izdanje)Lock, Graham. Functional English Grammar: An Introduction for Second Language Teachers. Cambridge University Press, 1996.
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