Perlite :
thermal data and energy required for expansion /
by E.G. King, S.S. Todd, and K.K. Kelley.

APA Citation

King, E. G., Kelley, K. K., Todd, S. S. (1948). Perlite: thermal data and energy required for expansion. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

King, E. G, K. K Kelley, and S. S Todd. Perlite: Thermal Data And Energy Required for Expansion. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1948.

Warning: These citations may not always be complete (especially for serials).