APA (7th ed.) Citation

(1970). Intensive course in English: Advanced 1. English Language Services, Inc.

Chicago Style (17th ed.) Citation

Intensive Course in English: Advanced 1. Washington, DC: English Language Services, Inc, 1970.

MLA (9th ed.) Citation

Intensive Course in English: Advanced 1. English Language Services, Inc, 1970.

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