Gaya APA

Ayres, F., Kotler, P. (1981). Theory And Problems Of Differential Equations In Si (metric) Units (Ed. s1). Singapore: Mc Graw-Hill.

Gaya MLA

Ayres, Frank., Kotler, Philip. "Theory And Problems Of Differential Equations In Si (metric) Units". Ed. s1 Singapore: Mc Graw-Hill, 1981. Text.