@booklet {4327,
	title = {ISSLER, R.S. 1978. The Seis Lagos carbonatite complex. Proceedings of the First International Symposium on Carbonatites, Pocos de Caldas, Brasil: 233-40.},
	year = {1978},
	note = {ISSLER, R.S. 1978. The Seis Lagos carbonatite complex. Proceedings of the First International Symposium on Carbonatites, Pocos de Caldas, Brasil: 233-40.}
}
