Mehta, T. S., Singh, P., & Vashisht, R. S. (1973). Teaching of geography and national integration. National Council of Educational Research and Training.
Chicago-viite (17. p.)Mehta, T. S., Prabhakar Singh, ja R. S. Vashisht. Teaching of Geography and National Integration. New Delhi: National Council of Educational Research and Training, 1973.
MLA-viite (8. p.)Mehta, T. S., et al. Teaching of Geography and National Integration. National Council of Educational Research and Training, 1973.
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