左默 & 曾菡. (2021). 飞鸟的世界: Big book of birds. 江苏凤凰少年儿童出版社.
Lua i Stíl Chicago (17ú heag.)左默 agus 曾菡. 飞鸟的世界: Big Book of Birds. 江苏凤凰少年儿童出版社, 2021.
Lua MLA (8ú heag.)左默 agus 曾菡. 飞鸟的世界: Big Book of Birds. 江苏凤凰少年儿童出版社, 2021.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.