@booklet {4803,
	title = {CULLERS, R.L. and MEDARIS, G. 1977. Rare earth elements in carbonatite and cogenetic alkaline rocks: examples from Seabrook Lake and Callander Bay, Ontario. Contributions to Mineralogy and Petrology, 65: 143-53.},
	year = {1977},
	note = {CULLERS, R.L. and MEDARIS, G. 1977. Rare earth elements in carbonatite and cogenetic alkaline rocks: examples from Seabrook Lake and Callander Bay, Ontario. Contributions to Mineralogy and Petrology, 65: 143-53.}
}
