Ewing, I. R., & Ewing, A. (1958). New opportunities for deaf children. University of London Press.
Cita Chicago (17th ed.)Ewing, Irene R., i Alexander Ewing. New Opportunities for Deaf Children. London: University of London Press, 1958.
Cita MLA (8th ed.)Ewing, Irene R., i Alexander Ewing. New Opportunities for Deaf Children. University of London Press, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.