APA
Singh R., . (1971). India a regional geography. Varanasi: Silver Jubilee Publication.
Chicago
Singh R.L, . 1971. India a regional geography. Varanasi: Silver Jubilee Publication.
Harvard
Singh R., . (1971). India a regional geography. Varanasi: Silver Jubilee Publication.
MLA
Singh R.L, . India a regional geography. Varanasi: Silver Jubilee Publication. 1971.