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![](./img/clear.gif) 1.- Introduction to Symposium on Pennsylvanian problems
Wanless, Harold R.; Congreso - Symposium on Pennsylvanian Problems (1946. San Luis, Estados Unidos)
[S.l.: s.n.], 1947
Journal of Geology
Cª 337-50
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![](./img/clear.gif) 2.- Shoreline features and their change
Wanless, Harold R.; M.R. El - Ashry, H.R. Wanless
1967
Revistas
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