APA (7e ed.) Bronvermelding

Lewis, N. (2015). Word Power Made Easy: The Most Effective Vocabulary Builder in the English Language! Goyal Publishers & Distributors Pvt. Ltd.

Chicago (17e ed.) Bronvermelding

Lewis, Norman. Word Power Made Easy: The Most Effective Vocabulary Builder in the English Language! New Delhi: Goyal Publishers & Distributors Pvt. Ltd, 2015.

MLA (9e ed.) Bronvermelding

Lewis, Norman. Word Power Made Easy: The Most Effective Vocabulary Builder in the English Language! Goyal Publishers & Distributors Pvt. Ltd, 2015.