Evans V. Virginia & Dooley J. Jenny. (1998). Enterprise 4. Intermediate: Workbook (2-nd ed.). Newbury, Express Publishing, 1998.
Chicago-viite (17. p.)Evans V. Virginia ja Dooley J. Jenny. Enterprise 4. Intermediate: Workbook. 2-nd ed. Newbury, Express Publishing, 1998, 1998.
MLA-viite (9. p.)Evans V. Virginia ja Dooley J. Jenny. Enterprise 4. Intermediate: Workbook. 2-nd ed. Newbury, Express Publishing, 1998, 1998.
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