Rao, N. S. (1991). Design formulas for plastics engineers. Hanser.
Chicago Style aipamenaRao, Natti S. Design Formulas for Plastics Engineers. Munich: Hanser, 1991.
MLA aipamenaRao, Natti S. Design Formulas for Plastics Engineers. Hanser, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.