Anything You Can Do — Randall Garrett

One shipwrecked alien against the power of an entire planet means a losing battle... until Earth builds superman! Randall Garrett (December 16, 1927 - December 31, 1987) was an American science fiction and fantasy author. He was a prolific contributor to Astounding and other science fiction magazines of the 1950s and 1960s. He instructed Robert Silverberg in the techniques of selling large quantities of action-adventure sf, and collaborated with him on two novels about Earth bringing civilization to an alien planet.