Sperb, R. P. (1981). Maximum principles and their applications. Academic Press.
Style de citation Chicago (17e éd.)Sperb, Ren�e Peter. Maximum Principles and Their Applications. New York: Academic Press, 1981.
Style de citation MLA (8e éd.)Sperb, Ren�e Peter. Maximum Principles and Their Applications. Academic Press, 1981.
Attention : ces citations peuvent ne pas être correctes à 100%.