TY - BOOK AU - De Leon, Hector S. AU - ED - ED - ED - ED - SN - 971233791X (paperback) SN - 2 PY - 2003///.46 CY - Manila PB - Rex Book Store KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Philippines.;Philippines KW - Contracts;Obligations (Law) N1 - 5 ER -