TY  - GEN
AU  -  Thomson,A.J.
AU  -  Martinet,A.V.
TI  -  Exercises 3:Gerund Infinitive And Participles
T2  - A Practical English grammar For Foreign Students
CY  - London:Oxford University press,1962.
KW  - Language
KW  - English Language
KW  - Grammar
ER  -