Clark, C., & Haswell, M. j. a. (1964). The economics of subsistence agriculture, by Colin Clark and Margaret Haswell. MacMilan.
Chicago Style (17. basım) AtıfClark, Colin, ve Margaret joint author Haswell. The Economics of Subsistence Agriculture, by Colin Clark and Margaret Haswell. London: MacMilan, 1964.
MLA (9th ed.) AtıfClark, Colin, ve Margaret joint author Haswell. The Economics of Subsistence Agriculture, by Colin Clark and Margaret Haswell. MacMilan, 1964.
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