Sultan. (2006). A study guide to Chaucer and Shakespeare (2nd ed.). Frends' book.
Čikaški stil citiranja (17. izdanje)Sultan. A Study Guide to Chaucer and Shakespeare. 2nd ed. Dhaka: Frends' book, 2006.
MLA način citiranja (8. izdanje)Sultan. A Study Guide to Chaucer and Shakespeare. 2nd ed. Frends' book, 2006.
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