Items where Author is "Kalma, J.J."
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Number of items: 2.
Article
Kalma, J.J. Ds Johannes Henricus Nieuwold, de Fryske Pestalozzi. , 1950.
Book
Kalma, J.J. Derk Roelfs Mansholt (1842-1921) : boer en volkspartijman. Bibliografieen . Leeuwarden : UNSPECIFIED. , 1980