First[-sixth] Annual Report on the Geological Survey of Pennsylvania Pennsylvania. Bureau of Topographic and Geologic Survey Published: 1836 Total Pages: 822 Get eBook
Annual Report on the Geological Survey of Pennsylvania Geological Survey of Pennsylvania Published: 1840 Total Pages: 294 Get eBook
A Catalogue of Official Reports Upon Geological Surveys of the United States and Territories Frederick Prime Published: 1879 Total Pages: 84 Get eBook
Annual Report Pennsylvania. State Board of Health and Vital Statistics Published: 1892 Total Pages: 1102 Get eBook
Annual Report of the United States Geological Survey to the Secretary of the Interior Geological Survey (U.S.) Published: 1912 Total Pages: 1106 Get eBook
Transactions American Institute of Mining, Metallurgical, and Petroleum Engineers Published: 1879 Total Pages: 588 Get eBook
Official Documents, Comprising the Department and Other Reports Made to the Governor, Senate and House of Representatives of Pennsylvania Published: 1892 Total Pages: 1102 Get eBook
