01080cam a2200337 i 4500 000044144 2398 20030220111658.0 010217|1990 vm 000 eng 0949390194 IRC IRC IRC eng 371.911 BL-L Blackall, Loretta. Communication development in congenitally blind and severely vision impaired children : Principles and strategies / Loretta Blackall. Australia : Royal Victorian Institute for the Blind, 1990. 27cm, ; 29,5cm. The impact of congenital blindness and severe visual impairment on communication development; Strategies for working with children with severe visual impairment. Education. Blind. Blind Education. DUT From the UDN01 Monograph Printed language Mạng thư viện Đại học Đà Nẵng