APA
Leech G., Svartvik J., . (1986). A communicative grammer of english. London: Longman.
Chicago
Leech Geoffery, Svartvik Jan, . 1986. A communicative grammer of english. London: Longman.
Harvard
Leech G., Svartvik J., . (1986). A communicative grammer of english. London: Longman.
MLA
Leech Geoffery, Svartvik Jan, . A communicative grammer of english. London: Longman. 1986.
