APA (7th ed.) Citation

Guan, D., Lei, L., & Han, Z. Spatial-Temporal Variation of Population Aging: A Case Study of China’s Liaoning Province. Wiley.

Chicago Style (17th ed.) Citation

Guan, Dunyi, Lei Lei, and Zenglin Han. Spatial-Temporal Variation of Population Aging: A Case Study of China’s Liaoning Province. Wiley.

MLA (9th ed.) Citation

Guan, Dunyi, et al. Spatial-Temporal Variation of Population Aging: A Case Study of China’s Liaoning Province. Wiley.