United States. Department of the Interior, ProQuest (Firm), & Geological Survey (U.S.). (1907). Twenty-Eighth Annual Report of the Director of the United States Geological Survey. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Department of the Interior, ProQuest (Firm), and Geological Survey (U.S.). Twenty-Eighth Annual Report of the Director of the United States Geological Survey. Washington: [publisher not identified], 1907.
MLA (9th ed.) CitationUnited States. Department of the Interior, et al. Twenty-Eighth Annual Report of the Director of the United States Geological Survey. [publisher not identified], 1907.
Warning: These citations may not always be 100% accurate.