邢立达. (2009). 探索史前的奥秘: Exploring prehistorical mysteries. 航空工业出版社.
Lua i Stíl Chicago (17ú heag.)邢立达. 探索史前的奥秘: Exploring Prehistorical Mysteries. 航空工业出版社, 2009.
Lua MLA (8ú heag.)邢立达. 探索史前的奥秘: Exploring Prehistorical Mysteries. 航空工业出版社, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.