How English works : a grammar practice book (with answers) /
Michael Swan, Catherine Walter.
- Oxford : Oxford University Press, c1997.
- 358 p. : ill. (some col.) ; 25 cm.
Includes index
Introduction. - Test yourself. - Test yourself: answers. - Explanations and exercises: list of sections. - Phonetic alphabet. - Explanations and exercises. - Answers to exercises.