Ricketts, L. D. Proceedings of the second Pan American scientific congress: Improvement in mining and metallurgy an aid to conservation.
Chicago Style (17th ed.) CitationRicketts, L. D. Proceedings of the Second Pan American Scientific Congress: Improvement in Mining and Metallurgy an Aid to Conservation.
MLA (9th ed.) CitationRicketts, L. D. Proceedings of the Second Pan American Scientific Congress: Improvement in Mining and Metallurgy an Aid to Conservation.