@book{111987,
	author = {Deloitte, Haskins & Sells.},
	title = {Taxation in Puerto Rico},
	publisher = {Deloitte, Haskins & Sells},
	year = {1982.},
	series = {International tax and business service},
	address = {New York, N.Y.},
	note = {Issued also in loose-leaf.}
}