Sullivan, M. G. (1974). Understanding children who are partially seeing: A classroom teacher's guide. Special Child Publications.
Lua i Stíl Chicago (17ú heag.)Sullivan, Martha G. Understanding Children Who Are Partially Seeing: A Classroom Teacher's Guide. [Seattle]: Special Child Publications, 1974.
Lua MLA (8ú heag.)Sullivan, Martha G. Understanding Children Who Are Partially Seeing: A Classroom Teacher's Guide. Special Child Publications, 1974.
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