Treatise on Invertebrate Palaeontology. Echinodemata 3 Volume 2. 1966.
This volume deals with Echinoids primarily with a small chapter on Holuthurians or sea cucumbers at the end. Absolutely full of illustrations of all the Echinoid genera. In suberb condition. Very difficult to obtain nowadays. a must have 'Bible' for anyone interested in Echinoids.
Book : 25 x 17 x 2.5 cm.