@book{34488,
	author = {RICKLEFS, Robert.},
	title = {Species diversity in ecological communities :},
	publisher = {The Univ. of Chicago,},
	year = {1993.},
	address = {Chicago ;},
	url = {http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=34488}
}