Published in Nautilus Philadelphia, in 1957, in volume 70, pages 73-84
Published in Nautilus Philadelphia, in 1957, in volume 70, pages 88-90
Published in The Nautilus, in 1957, in volume 70, pages 111-113
Published in The Nautilus, in 1957, in volume 70, issue 4, pages 136-138
Published in Nautilus Philadelphia, in 1957, in volume 71, pages 9-10
Published in Nautilus Philadelphia, in 1957, in volume 71, pages 47-52