杨旭. (2010). 世界重大发明发现百科全书: Inventions and discoveries of the world. 汕头大学出版社.
Lua i Stíl Chicago (17ú heag.)杨旭. 世界重大发明发现百科全书: Inventions and Discoveries of the World. 汕头大学出版社, 2010.
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Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.