National Board on Graduate Education. (1975). Outlook and opportunities for graduate education: The final report, with recommendations of the National Board on Graduate Education. National Board on Graduate Education.
芝加哥风格引文National Board on Graduate Education. Outlook and Opportunities for Graduate Education: The Final Report, with Recommendations of the National Board on Graduate Education. Washington: National Board on Graduate Education, 1975.
MLA引文National Board on Graduate Education. Outlook and Opportunities for Graduate Education: The Final Report, with Recommendations of the National Board on Graduate Education. National Board on Graduate Education, 1975.
警告：这些引文格式不一定是100％准确.