Linguaphone Institute Limited. (1990). LINGUAPHONE intermediate English course. London: Linguaphone Institute Limited.
Chicago Style CitationLinguaphone Institute Limited. LINGUAPHONE Intermediate English Course. London: Linguaphone Institute Limited, 1990.
MLA CitationLinguaphone Institute Limited. LINGUAPHONE Intermediate English Course. London: Linguaphone Institute Limited, 1990.
Warning: These citations may not always be 100% accurate.