ESC
Hal Clement

Hal Clement

Harry Clement Stubbs, better known by the pen name Hal Clement, was an American science fiction writer and a leader of the hard science fiction subgenre.

Born1922-05-30, Somerville, Massachusetts, USA
Died2003-10-29, Milton, Massachusetts, USA
Linkshttps://en.wikipedia.org/wiki/Hal_Clement