APA (7e ed.) Bronvermelding
Hellman, G. (1989). Mathematics without numbers: Towards a modal-structural interpretation. Clarendon Press ; Oxford University Press.
Chicago (17e ed.) Bronvermelding
Hellman, Geoffrey. Mathematics Without Numbers: Towards a Modal-structural Interpretation. Oxford : New York: Clarendon Press ; Oxford University Press, 1989.
MLA (9e ed.) Bronvermelding
Hellman, Geoffrey. Mathematics Without Numbers: Towards a Modal-structural Interpretation. Clarendon Press ; Oxford University Press, 1989.
Let op: Deze citaties zijn niet altijd 100% accuraat.