APA

Cashdollar K. L., Liebman I. & Conti R. S. (1981). Three Bureau of Mines optical dust probes. Pgh. [i.e. Pittsburgh], Pa: U.S. Dept. of the Interior, Bureau of Mines.

Chicago

Cashdollar Kenneth L, Liebman Israel and Conti Ronald S. 1981. Three Bureau of Mines optical dust probes. Pgh. [i.e. Pittsburgh], Pa: U.S. Dept. of the Interior, Bureau of Mines.

Harvard

Cashdollar K. L., Liebman I. and Conti R. S. (1981). Three Bureau of Mines optical dust probes. Pgh. [i.e. Pittsburgh], Pa: U.S. Dept. of the Interior, Bureau of Mines.

MLA

Cashdollar Kenneth L, Liebman Israel and Conti Ronald S. Three Bureau of Mines optical dust probes. Pgh. [i.e. Pittsburgh], Pa: U.S. Dept. of the Interior, Bureau of Mines. 1981.