Abundo, A. V. (1973). Principles of land reform and taxation (2nd ed.). s.n.
Lua i Stíl Chicago (17ú heag.)Abundo, Alfredo V. Principles of Land Reform and Taxation. 2nd ed. [Naga City: s.n, 1973.
Lua MLA (9ú heag.)Abundo, Alfredo V. Principles of Land Reform and Taxation. 2nd ed. s.n, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.