Hegner, Robert W.
Invertebrate zoology / Robert William Hegner, Joseph G Engemann - New York : Macmillan, c1968 - xii, 619 p. : ill. ; 24 cm.
Includes bibliographical references and index.
Invertebrates.
592 / HEI
Invertebrate zoology / Robert William Hegner, Joseph G Engemann - New York : Macmillan, c1968 - xii, 619 p. : ill. ; 24 cm.
Includes bibliographical references and index.
Invertebrates.
592 / HEI