@book{68355,
	author = {Pratzner, Frank C. and American Vocational Association.},
	title = {Programmatic research and development in education: positions, problems, propositions.},
	publisher = {Center for Vocational and Technical Education, Ohio State University; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington},
	year = {1972.},
	series = {Ohio State University. Center for Vocational and Technical Education. Research and Development series, 70},
	address = {Columbus},
	note = {All but two of the papers and Summary and conclusions section were presented at the 64th annual convention of the American Vocational Association in Dec. 1970, in New Orleans.}
}