(2006). General studies manual 2006: For the UPSC civil services preliminary examination. Tata McGraw-Hill.
Παραπομπή Chicago StyleGeneral Studies Manual 2006: For the UPSC Civil Services Preliminary Examination. New Delhi: Tata McGraw-Hill, 2006.
Παραπομπή MLAGeneral Studies Manual 2006: For the UPSC Civil Services Preliminary Examination. Tata McGraw-Hill, 2006.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.