Survey dan Penelitian Tanah propinsi Sumatera Utara Balai Penelitian Perkebunan Medan text Medan Balai Penelitian Perkebunan Medan 1972 ind

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9 p. : ill. ; 28 cm. Penelitian Tanah 631.47 631.47 BAL p 221212 20221212024204 INLIS000000000057938 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)