Gaya APA

crispin, A, J. (1997). programmable logic controllers: and their enginering applications (^a2 ^bjilid 1). Britain: McGraw-Hill Book Company.

Gaya MLA

crispin, Alan, J. "programmable logic controllers: and their enginering applications". ^a2 ^bjilid 1 Britain: McGraw-Hill Book Company, 1997. Text.