@book{50580,
	author = {Ponsioen, Johannes Antonius},
	title = {The analysis of social change reconsidered :},
	publisher = {Mouton,},
	year = {1962.},
	series = {Publications of the Institute of social studies. , series maior, vol. iv},
	address = {'S - Gravenhage :},
	note = {Includes index.}
}