Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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