周恩来与云南的生态环境保护, 2019-11-13. 特藏中心.

周恩来与云南的生态环境保护, 2019-11-13. 特藏中心. http://10.55.102.87:8081/repositories/2/archival_objects/11910 Accessed June 28, 2025.

(杨军 et al.)

(杨军, 云南日报, 张鑫, & 唐璐, n.d.)

(杨军 et al., n.d.)

杨军 et al., “周恩来与云南的生态环境保护, 2019-11-13,” ., accessed June 28, 2025, http://10.55.102.87:8081/repositories/2/archival_objects/11910.

杨军, 云南日报, 张鑫, et al. 周恩来与云南的生态环境保护, 2019-11-13[Z/OL]([no date])[2025–06–28]. http://10.55.102.87:8081/repositories/2/archival_objects/11910.