Partial differential equations/
Duff, G. F. D. 1926-
Partial differential equations/ G. F. D. Duff. - Toronto: University of Toronto Press, 1956. - x, 248 p.: diagrs., 24 cm. - Mathematical expositions no. 9. .
Bibliography: p. [244]-245.
a 56004187
GB56-4706
Differential equations, Partial.
515.35 / D855p
Partial differential equations/ G. F. D. Duff. - Toronto: University of Toronto Press, 1956. - x, 248 p.: diagrs., 24 cm. - Mathematical expositions no. 9. .
Bibliography: p. [244]-245.
a 56004187
GB56-4706
Differential equations, Partial.
515.35 / D855p