LIANG ZHENG. Urban Greening and Ecological Balance in the United States: Policies, Practices, and Challenges. Journal of Progress in Engineering and Physical Science, [S. l.], v. 3, n. 3, p. 94–103, 2024. Disponível em: https://www.pioneerpublisher.com/jpeps/article/view/943. Acesso em: 30 apr. 2025.