Published in Annals of The Carnegie Museum, in 1952, in volume 32, pages 291-304

Published in Annals of the Carnegie Museum, in 1952, in volume 32, pages 313-318

Published in Annals of the Carnegie Museum, in 1952, in volume 32, pages 319-328

Published in Annals of the Carnegie Museum, in 1952, in volume 32, pages 331-332

Published in Annals of The Carnegie Museum, in 1952, in volume 33, pages 47-112

Published in Annals of the Carnegie Museum, in 1952, in volume 33, issue 1, pages 1-44