@book{15227,
	author = {International Seminar on Health Education (4th : 1979 : Heidelberg).},
	title = {Factors promoting or hindering health education : proceedings [of the] IVth International Seminar on health education [held in] Heidelberg, Federal Republic of Germany, 7-11 November 1979.},
	publisher = {International Journal of Health Education,},
	year = {1982.},
	address = {[Geneva] : }
}