Wirtz Willard. (1975). The boundless resources: A prospectus for an education -work policy. NRPC.
芝加哥风格引文Wirtz Willard. The Boundless Resources: A Prospectus for an Education -work Policy. Washington D.C.: NRPC, 1975.
MLA引文Wirtz Willard. The Boundless Resources: A Prospectus for an Education -work Policy. NRPC, 1975.
警告：这些引文格式不一定是100％准确.