Author: CORNELIS, W.,
Title: Een Poging tot verbetering der kaarten van Noord-Sumatra. Offprint from:Tijdschrift KNAG, 2nd. series vol. XXIv-6.
Description: Leiden, s.n., 1907. Original wrappers. pp.1030-1047, some tables in text & full-p. Essay, originally published in Journal of Royal Dutch Geographical Society, KNAG, with as subject matter an attempt to correct and revise [obsolete] maps of North Sumatra.

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