Invertebrates: platyhelminthes and rhynchocoela the acoelomate bilateria Vol 2 - Libbie Henrietta Hyman (Newyork Mcgraw-hill book co., 1951)
Libbie Henrietta Hyman: Invertebrates: platyhelminthes and rhynchocoela the acoelomate bilateria Vol 2. Newyork. Mcgraw-hill book co., 1951.--(592HYM)
ENGLISH