The invertebrates :
Hyman, Libbie Henrietta
The invertebrates : platyhelminthes and rhynchocoela the acoelomate bilateria Libbie Henrietta Hyman - New York : McGraw Hill Book Company, 1951. - 2v.(vii, 550 p.) ; 22 cm.
Invertebrates
Platyhelminthes and rhynchocoela the acoelomate bilateria
592 HYM
The invertebrates : platyhelminthes and rhynchocoela the acoelomate bilateria Libbie Henrietta Hyman - New York : McGraw Hill Book Company, 1951. - 2v.(vii, 550 p.) ; 22 cm.
Invertebrates
Platyhelminthes and rhynchocoela the acoelomate bilateria
592 HYM