P. Sitorus [et.al.] text Bogor Lembaga Penelitian Peternakan 1979 Jilid 1 id xii, 381 p.: ill; 23 cm. 636(063)/SEM/p79(2) 210520 20210520150937 INLIS000000000010329 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)