Spectrum .: A communicative course in English
- Englewood Cliffs, New Jersey, US : Prentice Hall Regents, 1987.
- 136 p.
0-13-826645-X
English language--Study and teaching--Foreign speakers.
428 SPE v2.
0-13-826645-X
English language--Study and teaching--Foreign speakers.
428 SPE v2.