@book{42557,
	author = {Akerman, Johan},
	title = {Estructuras y ciclos económicos.},
	publisher = {Aguilar},
	year = {1962.},
	series = {Biblioteca de ciencias sociales. Sección primera, Economía},
	address = {Madrid},
	edition = {2 ed.},
	note = {Translation of Ekonomisk teori.}
}