Philippines (Republic). National Economic Council. Four year development plan 1972-75. Inter Documentation Company.
芝加哥风格引文Philippines (Republic). National Economic Council. Four Year Development Plan 1972-75. Switzerland: Inter Documentation Company.
MLA引文Philippines (Republic). National Economic Council. Four Year Development Plan 1972-75. Inter Documentation Company.
警告：这些引文格式不一定是100％准确.