Published in Bulletin of The Southern California Academy of Sciences, in 1964, in volume 63, pages 27-31

Published in Bulletin Southern California Academy of Sciences, in 1964, in volume 63, pages 33-37

Published in Bulletin of The Southern California Academy of Sciences, in 1964, in volume 63, pages 57-80

Published in Bulletin of The Southern California Academy of Sciences, in 1964, in volume 63, pages 81-85

Published in Bulletin of The Southern California Academy of Sciences, in 1964, in volume 63, issue 3, pages 113-127