. . . "Cover"@en . . "GURPS Aliens is a sourcebook for GURPS published in 1990."@en . . . . . . . . . . "GURPS"@en . . . . . "GURPS Aliens"@en . . . . "41081797"^^ . . . . . . . "GURPS Aliens is a sourcebook for GURPS published in 1990."@en . "GURPS Aliens"@en . "2914"^^ . . . . . . . . . "GURPS Aliens"@en . . . . . . . "1124206016"^^ . .