Cita APA

Li, L. 1., & Li, L. 1. Happy aging: Caring for the elderly needs more investment, a better structure and new ideas.

Citación estilo Chicago

Li, Li 1952-, y Li 1952- Li. Happy Aging: Caring for the Elderly Needs More Investment, a Better Structure and New Ideas.

Cita MLA

Li, Li 1952-, y Li 1952- Li. Happy Aging: Caring for the Elderly Needs More Investment, a Better Structure and New Ideas.