@book{75437,
	author = {Hill, Napoleon and Stone, W. Clement},
	title = {La actitud mental positiva},
	publisher = {Grijalbo},
	year = {c1982.},
	series = {Autoayuda y superación.},
	address = {Barcelona},
	edition = {3 ed.},
	note = {Translation of: Success through a positive mental attitude.}
}