APA (7e ed.) Bronvermelding

Velleman Daniel J. (2023). How to prove it: A structured approach (3rd ed. Ver.3.). Cambridge University Press.

Chicago (17e ed.) Bronvermelding

Velleman Daniel J. How to Prove It: A Structured Approach. 3rd ed. Ver.3. UK: Cambridge University Press, 2023.

MLA (9e ed.) Bronvermelding

Velleman Daniel J. How to Prove It: A Structured Approach. 3rd ed. Ver.3. Cambridge University Press, 2023.