United States. Department of Agriculture. (1911). Examination and classification of rocks for road building, including physical properties of rocks with reference to their mineral composition and structure. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Examination and Classification of Rocks for Road Building, Including Physical Properties of Rocks with Reference to Their Mineral Composition and Structure. [Washington]: GPO, 1911.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Examination and Classification of Rocks for Road Building, Including Physical Properties of Rocks with Reference to Their Mineral Composition and Structure. GPO, 1911.
Warning: These citations may not always be 100% accurate.