Recyclingplas Conference McLean, Virginia, & Plastics Institute of America. (1993). Plastics recycling as a business opportunity: 1993 Recyclingplas VIII Conference, June 3,4 1993, Ritz-Carlton Tysons Corner, McLean, Virginia. Plastics Institute of America.
芝加哥风格引文Recyclingplas Conference McLean, Virginia, 与 Plastics Institute of America. Plastics Recycling as a Business Opportunity: 1993 Recyclingplas VIII Conference, June 3,4 1993, Ritz-Carlton Tysons Corner, McLean, Virginia. Fairfield, N.J.: Plastics Institute of America, 1993.
MLA引文Recyclingplas Conference McLean, Virginia, 与 Plastics Institute of America. Plastics Recycling as a Business Opportunity: 1993 Recyclingplas VIII Conference, June 3,4 1993, Ritz-Carlton Tysons Corner, McLean, Virginia. Plastics Institute of America, 1993.