| 1 |  | Basic English grammar / Betty Schrampfer Azar . - 2nd ed. - New Jersey : Prentice Hall Regents , 1996. - 460 tr ; 20 cm Thông tin xếp giá: : N/400/A.000725, NNM.001282 |
| 2 |  | Understanding and using English grammar / Betty Schrampfer Azar . - 2nd ed. - New Jersey, U.S.A : Prentice Hall Regents , 1989. - 430 tr ; 20 cm Thông tin xếp giá: : NNM.001208-001210 |
| 3 |  | Understanding and using English grammar : Workbook / Betty Schrampfer Azar, Donald A. Azar . - 2nd ed. - New Jersey, U.S.A : Prentice Hall Regents , 1990. - 328 tr ; 20 cm Thông tin xếp giá: : N/400/A.001769 |