APA

Asphalt Institute. Manual Series nr 18 [MS-18], . (1981). Sampling asphalt products for specifications compliance. College Park, MD: Asphalt Institute. Manual Series nr 18 [MS-18].

Chicago

Asphalt Institute. Manual Series nr 18 [MS-18], . 1981. Sampling asphalt products for specifications compliance. College Park, MD: Asphalt Institute. Manual Series nr 18 [MS-18].

Harvard

Asphalt Institute. Manual Series nr 18 [MS-18], . (1981). Sampling asphalt products for specifications compliance. College Park, MD: Asphalt Institute. Manual Series nr 18 [MS-18].

MLA

Asphalt Institute. Manual Series nr 18 [MS-18], . Sampling asphalt products for specifications compliance. College Park, MD: Asphalt Institute. Manual Series nr 18 [MS-18]. 1981.