Complex sentence: It appeared in "The Instrumentality of Mankind", a collection published in May 1979, and it was in "The Rediscovery of Man", a complete collection of his short stories, published in 1993.
Split into simpler sentences: It appeared in "The Instrumentality of Mankind", a collection of his stories, published in May 1979. It was in "The Rediscovery of Man", published in 1993.