Piskunov, N. Semenovich. Calcul differentiel et integral - ed.2, rev - Moscou, Edition Mir, 1966. - 614 p. 23 cm. Index, p.608 fre LCCN: 67044530 Subjects--Topical Terms: Differential calculus.Calculus, Integral. LC Class. No.: QA303 Dewey Class. No.: 515