@book{82709,
	title = {Effects of light quality on following and morphogenesis in Hyoscyamus},
	publisher = {H.Veenman and Zonen N.V.},
	year = {1968},
	series = {Mededelingen Landbouwhogeschool Wageningen; 68-12, (1968)},
	address = {Niger L.Wageningen}
}