APA aipamena

Kumar Sundram. Upkar's general knowledge 2019. Upkar Prakashan.

Chicago Style aipamena

Kumar Sundram. Upkar's General Knowledge 2019. Agra: Upkar Prakashan.

MLA aipamena

Kumar Sundram. Upkar's General Knowledge 2019. Upkar Prakashan.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.