THE HUGO WINNERS - Volume (1) One; Volume (2) Two: The Darfsteller; Allamagoosa; Weyr Search; Riders of the Purple Wage; Exploration; Gonna Roll the Bones; I Have No Mouth and I Must Scream; Nightwings; Time Considered as a Helix of Semi-Precious Stones
SP-5 Book is Authored by the award winners; It was Edited by Isaac Asimov That being said, it is the first publication I have found for Anne McCaffrey's Weyr Search. She got the 1968 Hugo Novella Award and is published in this volume, but the original publication is lost to history at this point for my Metadata.
I read 'Time is a Helix..' for class and I have to say the disjointed pacing and structure of the inner monologue is very hard to read. It's almost stream-of-consciousness, and considering the story is relatively short, a lot of world/character building was lost in it's ramble-style paragraph structure.