APA استشهاد

Gilbert, R. P. (1969). Function theoretic methods in partial differential equations. Academic Press.

استشهاد بنمط شيكاغو

Gilbert, Robert P. Function Theoretic Methods in Partial Differential Equations. New York: Academic Press, 1969.

MLA استشهاد

Gilbert, Robert P. Function Theoretic Methods in Partial Differential Equations. Academic Press, 1969.