Published in Nautilus Philadelphia, in 1967, in volume 80, pages 81-82

Published in Nautilus Philadelphia, in 1967, in volume 80, pages 83-84

Published in Nautilus Philadelphia, in 1967, in volume 80, pages 99-102

Published in Nautilus Philadelphia, in 1967, in volume 80, pages 119-124

Published in Nautilus Philadelphia, in 1967, in volume 80, pages 125-126

Published in Nautilus Philadelphia, in 1967, in volume 81, pages 1-6

Published in Nautilus Philadelphia, in 1967, in volume 81, pages 6-11

Published in Nautilus Philadelphia, in 1967, in volume 81, pages 22-25