Author: Valkenburg, Dr. S. van.
Title: Geomorphologische beschouwingen over de Padangsche Bovenlanden.
Description: Batavia., Topographische Inrichting., 1922. 27 x 20 cm., 30 pages, + 6 plates with photos + folding col. map Padangsche Bovenlanden 1;750.000. Wraps. Owner's entry. offprint; Jaarboek Topogr. Dienst. 1921.

Keywords: Indonesia. geology.