@book{239289,
	author = {Konarska, Agata and Weryszko Chmielewska, Elzbieta},
	title = {Diversity of the floral nectaries surface of four Crataegus L. species / M. Chwil [et al.]},
	year = {2007},
	note = {fot. col., fot. byn}
}