(1993). Tata Mc Graw Hill General Studies Manual for UPSC Civil Services Preliminary Examination. Tata McGraw-Hill.
Παραπομπή Chicago StyleTata Mc Graw Hill General Studies Manual for UPSC Civil Services Preliminary Examination. New Delhi: Tata McGraw-Hill, 1993.
Παραπομπή MLATata Mc Graw Hill General Studies Manual for UPSC Civil Services Preliminary Examination. Tata McGraw-Hill, 1993.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.