"duff, g f. "
partial differencial equations: / g.f. duff - 1 ed. - uk : universty of toronto 1956. - "viii, 248p.; 23 cm." - mathematical expositions .
includes bibliography
hard cover
QA374 / .D84 1956
partial differencial equations: / g.f. duff - 1 ed. - uk : universty of toronto 1956. - "viii, 248p.; 23 cm." - mathematical expositions .
includes bibliography
hard cover
QA374 / .D84 1956