Best Science Fiction Stories of the Year—Fifth Annual Collection 1976

Forward: fifty years of science fiction --
The bitter bread / Poul Anderson --
Mail supremacy / Hayford Peirce --
Child of all ages / P.J. Plauger --
Tree of life / Phyllis Eisenstein --
Helbent four / Stephen Robinett --
Pop goes the weasel / Robert Hoskins --
The book learners / Liz Hufford --
High yield bondage / Hayford Peirce --
Senior citizen / Clifford D. Simak --
The peddler's apprentice / Joan D. Vinge and Vernor Vinge --
The science fiction yearbook.