Geologische kaart van Sumatra, schaal 1:200,000 [cartographic material].

Set complete in 13 sheets covering South Sumatra, although projected index in text for sheet 1 indicated at least 43 sheets were originally planned.; Sheets numbered 1-16. Numbers 11, 12 and 14 not used.; Relief shown by contours, formlines, and spot heights.; Includes index and profile sections.; Each sheet is named and numbered individually.; Bewerk door: J. Zwierzycki, J. Westerveld, J.F. van Tuijn, R.W. van Bemmelen, C.H. van Raalten, K.A.F.R. Musper.; Map series of Sumatra showing geological features