Gaya APA

85, A, P. (1985). Conference Proceedings for the Society of Plastics Engineeris, Inc 43rd Annual Technical Conference . Amerika: SPE.

Gaya MLA

85, Antec, Plastic. "Conference Proceedings for the Society of Plastics Engineeris, Inc 43rd Annual Technical Conference". Amerika: SPE, 1985. Buku Teks.