Published under the direction of the Executive Commission for the 1st Centenary Commemorating the Birth of Orville A. Derby
2 edições catalogadas · Rio de Janeiro · 1952–1952
[1952]DERBY, Orville A.. Orville A. Derby's studies on the paleontology of Brazil. Rio de Janeiro: Published under the direction of the Executive Commission for the 1st Centenary Commemorating the Birth of Orville A. Derby, 1952.
[1952]DERBY, Orville Adelbert. Studies on the paleontology of Brazil. Rio de Janeiro: Published under the direction of the Executive Commission for the 1st Centenary Commemorating the Birth of Orville A. Derby, 1952.