Não informado. (1969). Minerals science and engineering. National Institute for Metallurgy.
Style de citation Chicago (17e éd.)Não informado. Minerals Science and Engineering. Cottesloe, Africa do Sul: National Institute for Metallurgy, 1969.
Style de citation MLA (8e éd.)Não informado. Minerals Science and Engineering. National Institute for Metallurgy, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.