Lieb, H. (1888). The protective tariff: What it does to us! (4th and rev. ed.). Belford, Clarke.
Lua i Stíl Chicago (17ú heag.)Lieb, Hermann. The Protective Tariff: What It Does to Us! 4th and rev. ed. Chicago: Belford, Clarke, 1888.
Lua MLA (8ú heag.)Lieb, Hermann. The Protective Tariff: What It Does to Us! 4th and rev. ed. Belford, Clarke, 1888.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.