@book{831067,
	author = {Oka, Yoshiaki.},
	title = {Genshiro dotokusei to puranto seigyo /},
	publisher = {Omusha,},
	year = {2008.},
	series = {Genshiryoku kyokasho},
	address = {Tokyo :},
	edition = {Dai 1-han.}
}