Gaya APA

Greenspan, D. (1965). Harper's Series in Modern Mathematics: Introductory Numerial Analysis of Elliptic Boundary Value Problems (Cet. 1.--). New York: Harper dan Row.

Gaya MLA

Greenspan, Donald. "Harper's Series in Modern Mathematics: Introductory Numerial Analysis of Elliptic Boundary Value Problems". Cet. 1.-- New York: Harper dan Row, 1965. Text.