ROYCHOUDHURY & SIDDIQUI. (2016). ENGAGING ENGLISH - BOOK 7. COLLINS PUBLISHERS.
Chicago Style aipamenaROYCHOUDHURY & SIDDIQUI. ENGAGING ENGLISH - BOOK 7. NOIDA: COLLINS PUBLISHERS, 2016.
MLA aipamenaROYCHOUDHURY & SIDDIQUI. ENGAGING ENGLISH - BOOK 7. COLLINS PUBLISHERS, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.