Wold, H. (1981). The Fix-Point Approach to Interdependent Systems. ELSEVIER.
芝加哥风格引文Wold, H. The Fix-Point Approach to Interdependent Systems. ELSEVIER, 1981.
MLA引文Wold, H. The Fix-Point Approach to Interdependent Systems. ELSEVIER, 1981.
警告：这些引文格式不一定是100％准确.