00715cam a2200229 4500 418425748 TxAuBib 20190227120000.0 200225s2020||||||||||||||||||||||||eng|u 61509 Project Gutenberg PGUSA eng TxAuBib Giunta, John, 1920-1970. The Green World [Gutenberg] / John Giunta. Project Gutenberg, 2020. Public domain in the USA. Text. Human-alien encounters -- Fiction. Life on other planets -- Fiction. Extraterrestrial beings -- Fiction. Science fiction. Explorers -- Fiction. http://www.gutenberg.org/ebooks/61509