@article {31255,
	title = {Aspects of late Early and Middle Devonian conodont biostratigraphy},
	volume = {Special Paper 18},
	year = {1978},
	note = {In: Western and Arctic biostratigraphy. ed by C. R. Steck and B. D. E. Chatterton},
	pages = {161-231},
	institution = {Geological Association of Canada},
	author = {Chatterton, B. D. E.}
}
