Studies in invertebrate morphology / Published in honor of Dr. Robert Evans Snodgrass on the occasion of his eighty-fourth birthday, July 5, 1959. Invertebrate morphology. Smithsonian Institution. Snodgrass, Robert Evans, 1875- Entomology. Q11 .S7 vol. 137 592 STU Smithsonian Institution. Publication 4350. Includes bibliographies. Washington : Smithsonian Institution, 1959. 1959. 1959 Text v, 416 p. : eng