(1985). Special Program Information Tape United States Department of Commerce. Bureau of the Census. [electronic resource].
Chicago (17e ed.) BronvermeldingSpecial Program Information Tape United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1985.
MLA (9e ed.) BronvermeldingSpecial Program Information Tape United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1985.
Let op: Deze citaties zijn niet altijd 100% accuraat.