Animals Without Backbones :
Buchsbaum, Ralph
Animals Without Backbones : an introduction to the invertebrates / - 2nd ed. - Chicago : Chicago UP., c1948. - ix, 405 p. : ill. ; 24 cm.
Invertebrates
592 / BUC
Animals Without Backbones : an introduction to the invertebrates / - 2nd ed. - Chicago : Chicago UP., c1948. - ix, 405 p. : ill. ; 24 cm.
Invertebrates
592 / BUC