Gaya APA

et.al, C, E. (1997). The asme code simplified power boilers. (1997). Newyork,San Fransisco: MCGRAW-HILL.

Gaya MLA

et.al, Caroll,Dyer, E. "The asme code simplified power boilers.". 1997 Newyork,San Fransisco: MCGRAW-HILL, 1997. Text.