APA (7th ed.) Citation

Kruse, B., & Kruse, B. (1982). Instrumental English: English for the travel industry. McGraw-Hill.

Chicago Style (17th ed.) Citation

Kruse, Benedict, and Bettijune Kruse. Instrumental English: English for the Travel Industry. New York: McGraw-Hill, 1982.

MLA (9th ed.) Citation

Kruse, Benedict, and Bettijune Kruse. Instrumental English: English for the Travel Industry. McGraw-Hill, 1982.