Trimmer, J. (1842). Practical geology and mineralogy: With instructions for the qualitative analysis of minerals. Lea and Blanchard.
Chicago-referens (17:e uppl.)Trimmer, Joshua. Practical Geology and Mineralogy: With Instructions for the Qualitative Analysis of Minerals. Philadelphia: Lea and Blanchard, 1842.
MLA-referens (8:e uppl.)Trimmer, Joshua. Practical Geology and Mineralogy: With Instructions for the Qualitative Analysis of Minerals. Lea and Blanchard, 1842.
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