Lewis, N. (2015). Word Power Made Easy: The Most Effective Vocabulary Builder in the English Language! Goyal Publishers & Distributors Pvt. Ltd.
Chicago-čujuhus (17. p.)Lewis, Norman. Word Power Made Easy: The Most Effective Vocabulary Builder in the English Language! New Delhi: Goyal Publishers & Distributors Pvt. Ltd, 2015.
MLA-čujuhus (9. p.)Lewis, Norman. Word Power Made Easy: The Most Effective Vocabulary Builder in the English Language! Goyal Publishers & Distributors Pvt. Ltd, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.