APA (7e ed.) Bronvermelding
Porter, F., Leigh, T., & Spring, J. (2005). Material witness: The selected letters of Fairfield Porter. University of Michigan Press.
Chicago (17e ed.) Bronvermelding
Porter, Fairfield, Ted Leigh, en Justin Spring. Material Witness: The Selected Letters of Fairfield Porter. Ann Arbor: University of Michigan Press, 2005.
MLA (9e ed.) Bronvermelding
Porter, Fairfield, et al. Material Witness: The Selected Letters of Fairfield Porter. University of Michigan Press, 2005.
Let op: Deze citaties zijn niet altijd 100% accuraat.