The invertebrates - Hyman, Libbie Henrietta (New York : Holt : McGraw-Hill, 1940)
Contenido: v. 1. Protozoa through ctenophora
v. 2 Platyhelminthes and rhynchocoela. The acoelomate bilateria
v. 3. Acanthocephala, aschelminthes, and entoprocta. The Pseudocoelomate bilateria.
v. 4. Echinodermata. The coelonate bilateria
Keywords: INVERTEBRADOS; ZOOLOGÍA