Conservation and Development (1915-1945) https://hdl.handle.net/10929/33105 2021-04-26T00:26:57Z 2021-04-26T00:26:57Z The Mineral Industry of New Jersey for 1930 and preliminary estimates for 1931 New Jersey. Department of Conservation and Development. Johnson, Meredith https://hdl.handle.net/10929/40801 2018-12-06T06:17:05Z 1932-01-01T00:00:00Z The Mineral Industry of New Jersey for 1930 and preliminary estimates for 1931 New Jersey. Department of Conservation and Development.; Johnson, Meredith 1932-01-01T00:00:00Z The Mineral Industry of New Jersey 1929 New Jersey. Department of Conservation and Development. Johnson, Meredith https://hdl.handle.net/10929/40800 2018-12-06T06:17:13Z 1931-01-01T00:00:00Z The Mineral Industry of New Jersey 1929 New Jersey. Department of Conservation and Development.; Johnson, Meredith 1931-01-01T00:00:00Z The Mineral Industry of New Jersey 1928 New Jersey. Department of Conservation and Development. Johnson, Meredith https://hdl.handle.net/10929/40799 2018-12-06T06:19:02Z 1930-01-01T00:00:00Z The Mineral Industry of New Jersey 1928 New Jersey. Department of Conservation and Development.; Johnson, Meredith 1930-01-01T00:00:00Z The Mineral Industry of New Jersey 1927 New Jersey. Department of Conservation and Development. https://hdl.handle.net/10929/40798 2018-12-06T06:17:12Z 1929-01-01T00:00:00Z The Mineral Industry of New Jersey 1927 New Jersey. Department of Conservation and Development. 1929-01-01T00:00:00Z