Azar, B. S. (2000). Understanding and using english grammar: Workbook - volume b (Third edition.). Longman.
Chicago-čujuhus (17. p.)Azar, Betty Schrampfer. Understanding and Using English Grammar: Workbook - Volume B. Third edition. New York: Longman, 2000.
MLA-čujuhus (9. p.)Azar, Betty Schrampfer. Understanding and Using English Grammar: Workbook - Volume B. Third edition. Longman, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.