@book{40783,
	author = {Popma, Klaas Johan,},
	title = {Wijsbegeerte en anthropologie /},
	publisher = {Buijten & Schipperheijn,},
	year = {1963.},
	series = {Christelijk perspectief ;},
	address = {Amsterdam :},
	note = {Collection of the author's articles published earlier.}
}