Gaya APA

Irianto, A., Ayres, F. (1987,1981). Theory And Problems Differential And Integral Calculus In Si Metric Units (2nd Ed.). Singapore: McGraw-Hill.

Gaya MLA

Irianto, Agus., Ayres, Frank. "Theory And Problems Differential And Integral Calculus In Si Metric Units". 2nd Ed. Singapore: McGraw-Hill, 1987,1981. Text.