APA
Buttazzo G., Hildebrandt S. & Giaquinta M. (1998). One-dimensional veriational problems: An introduction. Oxford: Clarendon Pr.
Chicago
Buttazzo Giuseppe, Hildebrandt Stefan and Giaquinta Mariano. 1998. One-dimensional veriational problems: An introduction. Oxford: Clarendon Pr.
Harvard
Buttazzo G., Hildebrandt S. and Giaquinta M. (1998). One-dimensional veriational problems: An introduction. Oxford: Clarendon Pr.
MLA
Buttazzo Giuseppe, Hildebrandt Stefan and Giaquinta Mariano. One-dimensional veriational problems: An introduction. Oxford: Clarendon Pr. 1998.