APA
Velleman D. J., . (2019). How To Prove It: A Structured Approach. : Cambridge University Press.
Chicago
Velleman Daniel J, . 2019. How To Prove It: A Structured Approach. : Cambridge University Press.
Harvard
Velleman D. J., . (2019). How To Prove It: A Structured Approach. : Cambridge University Press.
MLA
Velleman Daniel J, . How To Prove It: A Structured Approach. : Cambridge University Press. 2019.