Danmarks geologiske undersøgelse.
Serie A =
Geological Survey of Denmark. Series A.

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Item Link Original Source
Limited (search only)   no.1-4 1976-1977 The Ohio State University
Limited (search only)   v.1-4(1976-1978) University of Illinois at Urbana-Champaign
Limited (search only)   no.6-10 1985-1986 The Ohio State University
Limited (search only)   no.11-15 1986 The Ohio State University
Limited (search only)   no.16-20 1987 The Ohio State University