APA (7th ed.) Citation

Nallaya. Polish your English: A textbook for English language proficiency courses.

Chicago Style (17th ed.) Citation

Nallaya. Polish Your English: A Textbook for English Language Proficiency Courses. 2006.

MLA (9th ed.) Citation

Nallaya. Polish Your English: A Textbook for English Language Proficiency Courses.

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