Citazione Stile APA (7a Edizione)

Seligman, E. R. A. 1. (1894). Progressive taxation in theory and practice. American Economic Association.

Citazione stile Chigago Style (17a edizione)

Seligman, Edwin Robert Anderson 1861. Progressive Taxation in Theory and Practice. [Baltimore]: American Economic Association, 1894.

Citatione MLA (9a ed.)

Seligman, Edwin Robert Anderson 1861. Progressive Taxation in Theory and Practice. American Economic Association, 1894.