Gaya APA
AMBROSIO, L., CRANDALL, M, G. (2008).
CALCULUS of variations and nonlinear partial differemtial equations .
Berlin:
Springer.
Gaya MLA
AMBROSIO, Luigi., CRANDALL, Michael, G..
"CALCULUS of variations and nonlinear partial differemtial equations ".
Berlin:
Springer,
2008.
Buku.