Seligman, E. R. A. 1. (1894). Progressive taxation in theory and practice. American Economic Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSeligman, Edwin Robert Anderson 1861. Progressive Taxation in Theory and Practice. [Baltimore]: American Economic Association, 1894.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSeligman, Edwin Robert Anderson 1861. Progressive Taxation in Theory and Practice. American Economic Association, 1894.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.