@book{52285,
	author = {Ponsen, M. B.},
	title = {The gut of the red currant blister aphid Cryptomysuz ribis (Homoptera : Aphididae)},
	publisher = {Veenman & Zonen,},
	year = {1977},
	series = {Mededelingen Landbouwhogeschool},
	address = {Wageningen :}
}