Cita APA (7a ed.)

Tilton, J. E., & Landsberg, H. H. (1984). Nonfuel minerals: The fear of shortages and the search for policies. International Institute for Applied Systems Analysis.

Cita Chicago Style (17a ed.)

Tilton, John E., y Hans H. Landsberg. Nonfuel Minerals: The Fear of Shortages and the Search for Policies. Laxenburg: International Institute for Applied Systems Analysis, 1984.

Cita MLA (9a ed.)

Tilton, John E., y Hans H. Landsberg. Nonfuel Minerals: The Fear of Shortages and the Search for Policies. International Institute for Applied Systems Analysis, 1984.