00455nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067082001500076100002800091245007100119260006500190300001000255650003200265Para_6126CHAP220125s1963 xx 000 0 und d a204906 cCHAP aPA 590 B53 aBlackwelder, Richard E. aClasification of the animal kingdom /c by Richard E. Blackwelder aCarbondale, Illinois :b Southern Illinois University Press a94 p. aZoologíaxClasificación