RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 28038031 LA English T1 Comparative microscopic dental anatomy in the Petalodontida (Chondrichthyes, Elasmobranchii) A1 Zangerl, Rainer, A1 Winter, H. Frank. A1 Hansen, Michael C. PB Field Museum of Natural History PP [Chicago, Ill.] YR 1993 T3 Fieldiana, new ser., no. 26