@book{26287,
	author = {Butt, A. M.},
	title = {Vegetative growth, morphogenesis and carbohidrate content of the onion plant as a function of light and temperature under field and controlled conditions},
	publisher = {Veenman,},
	year = {1968},
	series = {Mededelingen Landbouwhogeschool},
	address = {Wageningen :}
}