Dyfyniad APA

Singh,Ashok Kumar. (2008). Science & Technology for civil services Examinations. Tata McGraw-Hill.

Dyfyniad Arddull Chicago

Singh,Ashok Kumar. Science & Technology for Civil Services Examinations. New Delhi: Tata McGraw-Hill, 2008.

Dyfyniad MLA

Singh,Ashok Kumar. Science & Technology for Civil Services Examinations. Tata McGraw-Hill, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.