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1.
Programmatic research and development in education : positions, problems, propositions / edited by Frank C. Pratzner and Jerry P. Walker by Series: Ohio. Research and development series ; 70.
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: Washington, D. C. : U.S. Government Printing Office, 1972
Availability: Items available for loan: National Library of India (1)Call number: U.S 370.1130973 P 943.

2.
Programmatic research and development in education : positions, problems, propositions / edited by Frank C. Pratzner and Jerry P. Walker by Series: Ohio. Research and development series ; 70.
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English
Publication details: Washington, D. C. : U.S. Government Printing Office, 1972
Availability: Items available for loan: National Library of India (1)Call number: U.S 370.1130973 P 943.

                                                                           
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