1
by Haig, Robert Murray
Published 1921
Columbia University Press
...Columbia income tax lectures...

2
by Seligman, Edwin Robert Anderson
Published 1921
Columbia University Press

3
by Seligman, Edwin Robert Anderson
Published 1909
Printed for the Columbia University Press by the Macmillan Co

4
by Seligman, Edwin Robert Anderson
Published 1911
Printed for the Columbia University Press by the Macmillan Co