APA Style

Vekua, I, N. (1967). New Methods for Solving Elliptic Equations (1st). : North-Holland Publishing Company / John Wiley & Sons, Inc..

MLA Style

Vekua, I., N.. "New Methods for Solving Elliptic Equations". 1st : North-Holland Publishing Company / John Wiley & Sons, Inc., 1967. BOOK.