Bicol River Basin Development Program. (1976). Comprehensive development plan: 1975-2000. The Office.
芝加哥风格引文Bicol River Basin Development Program. Comprehensive Development Plan: 1975-2000. Baras, Canaman, Camarines Sur: The Office, 1976.
MLA引文Bicol River Basin Development Program. Comprehensive Development Plan: 1975-2000. The Office, 1976.
警告：这些引文格式不一定是100％准确.