@book{251518,
	author = {Institut International Potassa},
	title = {Revista de la Potassa : Comunicaiones mensuales del Instituto Internacional Potassa},
	publisher = {Institut International Potassa},
	year = {1985},
	address = {Bern},
	note = {-Existencias: 1985 vo. 11, no. 7; 1986 vol. 4, no.6}
}