Gaya APA
Lipton, R, J., Regan, K, W.
(2013).
People, problems, and proofs
.
Heidelberg:
Springer Berlin.
Gaya MLA
Lipton, Richard, J.., Regan, Kenneth, W..
"People, problems, and proofs".
Heidelberg:
Springer Berlin,
2013.
Electronic Resource.