Cita APA (7a ed.)

Schultz, H., Sullivan, P. M., & Walker, F. E. (1975). Characterizing combustible portions of urban refuse for potential use as fuel. U.S. Dept. of the Interior, Bureau of Mines.

Cita Chicago Style (17a ed.)

Schultz, Hyman, P. M. Sullivan, y F. E. Walker. Characterizing Combustible Portions of Urban Refuse for Potential Use as Fuel. Washington, D.C.: U.S. Dept. of the Interior, Bureau of Mines, 1975.

Cita MLA (9a ed.)

Schultz, Hyman, et al. Characterizing Combustible Portions of Urban Refuse for Potential Use as Fuel. U.S. Dept. of the Interior, Bureau of Mines, 1975.