APA (7th ed.) Citation

Seligman, E. R. A. (1900). The United States federal income tax. R. Clay and Sons, Limited.

Chicago Style (17th ed.) Citation

Seligman, Edwin R. A. The United States Federal Income Tax. [London] ; Bungay, [England]: R. Clay and Sons, Limited, 1900.

MLA (9th ed.) Citation

Seligman, Edwin R. A. The United States Federal Income Tax. R. Clay and Sons, Limited, 1900.