Published in Bulletin Southern California Academy of Sciences, in 1978, in volume 77, pages 22-27
Published in Bulletin Southern California Academy of Sciences, in 1978, in volume 77, pages 36-39
Published in Bulletin Southern California Academy of Sciences, in 1978, in volume 77, pages 40-43
Published in Bulletin Southern California Academy of Sciences, in 1978, in volume 77, pages 133-138
Published in Bulletin Southern California Academy of Sciences, in 1978, in volume 77, pages 138-142