@article {70,
	title = {Mehil{\"a}iset ja saasteet.},
	journal = {Mehil{\"a}inen},
	volume = {1987},
	year = {1987},
	pages = {128-132},
	keywords = {Aculeata, Apidae, Bombus},
	author = {Ter{\"a}s, I.}
}
