@article {29309,
	title = {Life cycle patterns of mayflies (Ephemeroptera) from some streams of Alberta, Canada},
	year = {1973},
	institution = {Proceedings of the First International Conference on Ephemeroptera, Florida},
	url = {http://www.famu.org/mayfly/pubs/pub_c/pubcliffordh1973p121.pdf},
	author = {Clifford, Hugh F. and Robertson, Michael R. and Zelt, Kenneth A.}
}
