(2001). Tata McGraw-Hill's general studies manual 2001 for the UPSC civil services preliminary examination. Tata McGraw-Hill.
Παραπομπή Chicago StyleTata McGraw-Hill's General Studies Manual 2001 for the UPSC Civil Services Preliminary Examination. New Delhi: Tata McGraw-Hill, 2001.
Παραπομπή MLATata McGraw-Hill's General Studies Manual 2001 for the UPSC Civil Services Preliminary Examination. Tata McGraw-Hill, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.