APA

Institute of Asphalt Technology. Special publication, . (1982). Roofs and roofing - 1981, international symposium. Reprints of papers given by U.K. contributors. London: Institute of Asphalt Technology. Special publication.

Chicago

Institute of Asphalt Technology. Special publication, . 1982. Roofs and roofing - 1981, international symposium. Reprints of papers given by U.K. contributors. London: Institute of Asphalt Technology. Special publication.

Harvard

Institute of Asphalt Technology. Special publication, . (1982). Roofs and roofing - 1981, international symposium. Reprints of papers given by U.K. contributors. London: Institute of Asphalt Technology. Special publication.

MLA

Institute of Asphalt Technology. Special publication, . Roofs and roofing - 1981, international symposium. Reprints of papers given by U.K. contributors. London: Institute of Asphalt Technology. Special publication. 1982.