Lewis,Norman. (1999). Word power made easy: : the most effective vocabulary builder in the english. Bloomsbury publishing.
শিকাগো স্টাইলে সাইটেশনLewis,Norman. Word Power Made Easy: : The Most Effective Vocabulary Builder in the English. United Kingdom: Bloomsbury publishing, 1999.
এমএলএ সাইটেশনLewis,Norman. Word Power Made Easy: : The Most Effective Vocabulary Builder in the English. Bloomsbury publishing, 1999.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.