APA (7th ed.) Citation

Gray. (2000). How to use the internet in ELT. Longman.

Chicago Style (17th ed.) Citation

Gray. How to Use the Internet in ELT. London: Longman, 2000.

MLA (9th ed.) Citation

Gray. How to Use the Internet in ELT. Longman, 2000.

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