Wold, H. (1981). Fix-Point Approach to Interdependent Systems. North-Holland Publishing Company.
Čikaški stil citiranjaWold, Herman. Fix-Point Approach to Interdependent Systems. Amsterdam: North-Holland Publishing Company, 1981.
MLA način citiranjaWold, Herman. Fix-Point Approach to Interdependent Systems. North-Holland Publishing Company, 1981.
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