"These four volumes cover 791 books or series, 238 of them published during the 1980s and 1990s. the entries are 1,000 words long for single books and 1,500 for

"These four volumes cover 791 books or series, 238 of them published during the 1980s and 1990s. the entries are 1,000 words long for single books and 1,500 for

"These four volumes cover 791 books or series, 238 of them published during the 1980s and 1990s. the entries are 1,000 words long for single books and 1,500 for

"These four volumes cover 791 books or series, 238 of them published during the 1980s and 1990s. the entries are 1,000 words long for single books and 1,500 for

One of the first science fiction novels to describe alien life forms.