TY - BOOK AU - HEARTH Gunatilake AU - CHOE Ae Kyeong TI - Economics and research department: Good Practices for Estimating Reliable Wilingness-to-pay Values in the Water Supply and Sanitation Sector SN - (pbk.) PY - 2007/// CY - [Manila, Philippines]:bAsian Development Bank KW - ASIAN DEVELOPMENT BANK N1 - Cover title ER -