Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Gregory, Robert Todd. Error-free Computation: Why It Is Needed and Methods for Doing It. Huntington, N. Y.: Robert E. Krieger, 1980.

Cita MLA (8a ed.)

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