American Psychological Association
Ackermann, Robert ( 1965 ). Theories of Knowledge a Critical Introduction ( 00 ed. ). Tata Mcgraw-Hill Publishinh Co Ltd.
Modern Language Association
Ackermann, Robert. Theories of Knowledge a Critical Introduction . Tata Mcgraw-Hill Publishinh Co Ltd. 1965
Chicago Citation
Ackermann, Robert. Theories of Knowledge a Critical Introduction . 00 .Bombay
: Tata Mcgraw-Hill Publishinh Co Ltd, 1965.
American Medical Association
Ackermann, Robert. Theories of Knowledge a Critical Introduction . Tata Mcgraw-Hill Publishinh Co Ltd; 1965.