Ali, A. (1979). Studies towards an understanding of the developmental perspective. Royal Book Co..
Chicago-referens (17:e uppl.)Ali, Ausaf. Studies Towards an Understanding of the Developmental Perspective. Karachi: Royal Book Co., 1979.
MLA-referens (8:e uppl.)Ali, Ausaf. Studies Towards an Understanding of the Developmental Perspective. Royal Book Co., 1979.
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