Bryman Alan. Social Research Methods (4th.). Oxford University Press.
Chicago (17e ed.) BronvermeldingBryman Alan. Social Research Methods. 4th. New Delhi New Delhi: Oxford University Press.
MLA (9e ed.) BronvermeldingBryman Alan. Social Research Methods. 4th. Oxford University Press.
Let op: Deze citaties zijn niet altijd 100% accuraat.