Sayyid, M. A. (1976). Problems of Urdu speakers in learning English consonants [microform]. Photoduplication Service, University of the Philippines Library.
Cita Chicago (17th ed.)Sayyid, Muhammad Abdul-Wahid. Problems of Urdu Speakers in Learning English Consonants [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
Cita MLA (9th ed.)Sayyid, Muhammad Abdul-Wahid. Problems of Urdu Speakers in Learning English Consonants [microform]. Photoduplication Service, University of the Philippines Library, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.