Institute, A. (1989). Annual book of ASTM standard: Petroleum products, lubricants and fossil fuels 1989 section 15 volume 15.09 paper, packaging, flexible barrier materials, business cpoy product. American Institute.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Institute, American. Annual Book of ASTM Standard: Petroleum Products, Lubricants and Fossil Fuels 1989 Section 15 Volume 15.09 Paper, Packaging, Flexible Barrier Materials, Business Cpoy Product. American Institute, 1989.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Institute, American. Annual Book of ASTM Standard: Petroleum Products, Lubricants and Fossil Fuels 1989 Section 15 Volume 15.09 Paper, Packaging, Flexible Barrier Materials, Business Cpoy Product. American Institute, 1989.
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