The State Tax Commission. Harley Leist Lutz Carl C. Plehn Journal of Political Economy 1919 27(2), 137-139 open access
The Adjustment of Street-Car Men's Wages in San Francisco Carl C. Plehn Journal of Political Economy 1903 12(1), 1-17 open access
Die Ergebnisse und die Aussichten der Personaleinkommensteuer in Österreich. Firedrich Freiherr Von Wieser Carl C. Plehn Journal of Political Economy 1902 10(3), 469-472 open access
Commerce and Tariffs in the Philippines Carl C. Plehn Journal of Political Economy 1902 10(4), 501-513 open access