Relates several episodes in the friendship of two hippopotamuses.
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Details
ISBN: 9780618961788 (hc) :
Physical Description:29 p. : col. ill. ; 24 cm.print
Publisher:Boston : Houghton Mifflin, [2007?].
General Note: "The stories in this book were originally published by Houghton Mifflin Company in George and Martha, copyright 1972 ... renewed 2000."--T.p. verso.