Gaya APA

Hein, M, A. (1984). HP41 pipeline hydraulics and heat transfer programs (1984). : Oklohama : PennWell Pub., Co.,.

Gaya MLA

Hein, Michael, A. "HP41 pipeline hydraulics and heat transfer programs". 1984 : Oklohama : PennWell Pub., Co.,, 1984. Text.