DR RAO. N. D. V. PRASADA. (2012). LEARNER'S ENGLISH GRAMMAR AND COMPOSITION BOOK- 6. S.CHAND.
Cita Chicago (17th ed.)DR RAO. N. D. V. PRASADA. LEARNER'S ENGLISH GRAMMAR AND COMPOSITION BOOK- 6. S.CHAND, 2012.
Cita MLA (9th ed.)DR RAO. N. D. V. PRASADA. LEARNER'S ENGLISH GRAMMAR AND COMPOSITION BOOK- 6. S.CHAND, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.