text Jakarta Yayasan Obor Indonesia 1988 ind xxiii, 320 hlm ilus 21 cm penyunting,Karl-Heinz W. Bechtold Termasuk bibliografi Pertanian dan negara - Sumatra Utara 338.1 979-461-016-X 20090227022127.0 YOGYA-02090000011414 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)