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1956
Walker, Frederick. "The Dolerites of the Cape Peninsula." Transactions of the Geological Society of South Africa 77 (1956): 77-92.
Walker, Frederick. "The Dolerites of the Cape Peninsula." Transactions of the Geological Society of South Africa 77 (1956): 77-92.
1940
Walker, Frederick. "Differentiation of the Palisade Diabase, New Jersey." Bulletin of the Geological Society of America 51 (1940): 1059-1106.
1939
Walker, Frederick. "The Geology of Maiden Island, Oban." Transactions of the Edinburgh Geological Society 8, no. 4 (1939): 475-482.