Published in Nautilus Philadelphia, in 1956, in volume 69, pages 92-93

Published in Nautilus Philadelphia, in 1956, in volume 69, pages 93-96

Published in Nautilus Philadelphia, in 1956, in volume 69, pages 109

Published in Nautilus Philadelphia, in 1956, in volume 69, pages 124-126

Published in Nautilus Philadelphia, in 1956, in volume 69, issue 4, pages 110-115

Published in Nautilus Philadelphia, in 1956, in volume 70, pages 1-3

Published in Nautilus Philadelphia, in 1956, in volume 70, pages 38-48

Published in Nautilus Philadelphia, in 1956, in volume 70, pages 48-53