APA
Broman A., . (1970). Introduction to partial differential equations. New York: Dover Pubns.
Chicago
Broman Arne, . 1970. Introduction to partial differential equations. New York: Dover Pubns.
Harvard
Broman A., . (1970). Introduction to partial differential equations. New York: Dover Pubns.
MLA
Broman Arne, . Introduction to partial differential equations. New York: Dover Pubns. 1970.