Text ( visual ) : unmediated The elements of economics / by Charles J. Bullock. -- 2nd ed. -- Boston : Silver , c1913. -- vii, 378 p. ; 20 cm. -- Includes index. -- (BA0244851X) ; https://ci.nii.ac.jp/ncid/BA0244851X Author Heading(s): Bullock, Charles Jesse. -- Classification(s): DC : 330. -- Subject Heading(s): LCSH : Economics

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