Gaya APA

Pennington, R, H. (1970). Introductory Computer Methods and Numerical Analysis (2). New York: Collier-macmillan Internasional.

Gaya MLA

Pennington, Ralph, H.. "Introductory Computer Methods and Numerical Analysis". 2 New York: Collier-macmillan Internasional, 1970. Text.