Seth, M. L., & Singh, S. (1998). Economic planning: Theory & practice (8th ed., thoroughly rev. and enl.). S. Chand.
Lua i Stíl Chicago (17ú heag.)Seth, M. L., agus S.P Singh. Economic Planning: Theory & Practice. 8th ed., thoroughly rev. and enl. Delhi: S. Chand, 1998.
Lua MLA (8ú heag.)Seth, M. L., agus S.P Singh. Economic Planning: Theory & Practice. 8th ed., thoroughly rev. and enl. S. Chand, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.