Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 5, pages 45-58

Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 6, pages 59-69

Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 8, pages 103-115

Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 9, pages 117-155

Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 10, pages 157-169

Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 11, pages 171-181

Published in Annals of the Carnegie Museum, in 1973, in volume 44, issue 12, pages 183-195