An Introduction To Extension Delivery Systems Valera, Jaime B. text Manila Island Publishing House 1987 eng
text
regular print
186 hlm. ; 21 cm. Pengairan 630 630 VAL a 240424 20240424062655 INLIS000000000002273 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)