Gaya APA

St, D., Nasional, A. (1990). General rules for inspection of steel forgings (1990). : Jakarta: Dewan Standardisasi Nasional,.

Gaya MLA

St, Dewan., Nasional, Ardisasi. "General rules for inspection of steel forgings". 1990 : Jakarta: Dewan Standardisasi Nasional,, 1990. Text.