na INLIS000000000003325 20250310111955 ta 250310 g 1 ind 0010-0325000025 631(910.1) 631(910.1) SCH t Scholz, Ulrich The Natural Regions of Sumatra and Their Agricultural Production Pattern : a Regional Analysis / Ulrich Scholz Vol. 1 Bogor : Central Research Institute for Food Crops (CRIFC), 1983 xvi, 257 p : ill ; 24 cm Agricultural 53/B/2004