APA (7th ed.) Citation

Linguaphone Institute. (1981). Intermediate English course: Programmes 1-10. The Linguaphone Institute.

Chicago Style (17th ed.) Citation

Linguaphone Institute. Intermediate English Course: Programmes 1-10. London: The Linguaphone Institute, 1981.

MLA (9th ed.) Citation

Linguaphone Institute. Intermediate English Course: Programmes 1-10. The Linguaphone Institute, 1981.

Warning: These citations may not always be 100% accurate.