In the far future, after human civilization has spread through the galaxy, communications begin to arrive in an apparently alien language. They appear to threaten invasion, but in order to counter the threat, the messages must first be understood.Joint winner of the Nebula Award for best novel, 1966
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语言 英语 ● 格式 EPUB ● ISBN 9780575101838 ● 出版者 Orion ● 发布时间 2010 ● 下载 6 时 ● 货币 EUR ● ID 2750494 ● 复制保护 Adobe DRM
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