Yazar
john h deyoung
6 cilt bulundu.
John H. DeYoung · Pennsylvania State University Press
102 sayfa · 1978
Electric utilities / Energy policy
John H. DeYoung · Dept. of the Interior, U.S. Geological Survey
22 sayfa · 1984
Chromium / Manganese / Manganese industry
John H. DeYoung · Dept. of the Interior, U.S. Geological Survey
62 sayfa · 1986
Strategic materials / Nickel
John H. DeYoung · Department of the Interior, Geological Survey, Office of Resource Analysis
Sayfa sayısı yok · 1975
Mineral industries / Economic aspects
John H. DeYoung, Jane Marie Hammarstrom · U.S. G.P.O.
Sayfa sayısı yok · 1989
Mines and mineral resources / Economic Geology
John H. DeYoung, University of Michigan. Dept. of Geology and Mineralogy · Yayınevi bilinmiyor
75 sayfa · 1969
Geology

