APA aipamena

Zeng,Yi. (2019). Promoting old-age vitality in the people republic of China: Yi Zeng. Asian Development Bank.

Chicago Style aipamena

Zeng,Yi. Promoting Old-age Vitality in the People Republic of China: Yi Zeng. Manila: Asian Development Bank, 2019.

MLA aipamena

Zeng,Yi. Promoting Old-age Vitality in the People Republic of China: Yi Zeng. Asian Development Bank, 2019.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.