Mehta, T. S., Singh, P., & Vashisht, R. S. (1973). Teaching of geography and national integration. National Council of Educational Research and Training.
Lua i Stíl Chicago (17ú heag.)Mehta, T. S., Prabhakar Singh, agus R. S. Vashisht. Teaching of Geography and National Integration. New Delhi: National Council of Educational Research and Training, 1973.
Lua MLA (8ú heag.)Mehta, T. S., et al. Teaching of Geography and National Integration. National Council of Educational Research and Training, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.