@book{252197,
	author = {Scandinavian University Press},
	title = {World Pollen and Spore Flora},
	publisher = {Scandinavian University Press},
	year = {1974},
	address = {Stockholm},
	note = {-Existencias: 1974-1975 vol. 3-4; 1978-1987 vol. 7-15; 1993 vol. 17-18}
}