APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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