00527nam a22001217a 4500008004100000040005500041080001200096100002800108245001800136260005500154500018400209650001200393230517b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a592bJ1  aHyman, Libbie Henrietta  aInvertebrates  aNew York: bMcGraw-Hill Book Company, Inc., c1951  aVol. 2 (Platyhelminthes and rhynchocoela: the acoelomate bilateria); vii, 549p.
Vol. 3 (Acanthocephala, aschel minthes, and entoprocta:  the pseudocoelomate bilateria); vii, 572p.  aScience