Petrovskij, I. G. (1991). Lectures on partial differential equations (unabridge and unaltered rep. of the 4th. pr. (1964) of the first work, 1954.). Dover Publ.
Chicago-Zitierstil (17. Ausg.)Petrovskij, Ivan G. Lectures on Partial Differential Equations. unabridge and unaltered rep. of the 4th. pr. (1964) of the first work, 1954. New York: Dover Publ, 1991.
MLA-Zitierstil (9. Ausg.)Petrovskij, Ivan G. Lectures on Partial Differential Equations. unabridge and unaltered rep. of the 4th. pr. (1964) of the first work, 1954. Dover Publ, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.