(1993). TOELF Practice Tests. New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoTOELF Practice Tests. New Jersey: Prentice-Hall, 1993.
MLA citiranjeTOELF Practice Tests. New Jersey: Prentice-Hall, 1993.
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(1993). TOELF Practice Tests. New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoTOELF Practice Tests. New Jersey: Prentice-Hall, 1993.
MLA citiranjeTOELF Practice Tests. New Jersey: Prentice-Hall, 1993.