Poor, H. W., & Poor, H. V. Poor's handbook of investment securities: A supplement to Poor's manual of railroads.
Chicago-viite (17. p.)Poor, Henry W., ja Henry Varnum Poor. Poor's Handbook of Investment Securities: A Supplement to Poor's Manual of Railroads.
MLA-viite (8. p.)Poor, Henry W., ja Henry Varnum Poor. Poor's Handbook of Investment Securities: A Supplement to Poor's Manual of Railroads.
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