Cita APA (7a ed.)

Gregory, R. T. (1980). Error-Free computation: Why it is needed and methods for doing it. R. Krieger.

Cita Chicago Style (17a ed.)

Gregory, Robert Todd. Error-Free Computation: Why It Is Needed and Methods for Doing It. New York: R. Krieger, 1980.

Cita MLA (9a ed.)

Gregory, Robert Todd. Error-Free Computation: Why It Is Needed and Methods for Doing It. R. Krieger, 1980.