Published in Nautilus, in 1959, in volume 72, pages 111-113

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1959, in volume 72, pages 115

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1959, in volume 73, pages 1-9

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1959, in volume 73, pages 9-11

Created: 2012-03-12, modified: 2012-03-12

Published in Nautilus, in 1959, in volume 73, issue 1, pages 36

Created: 2014-12-03, modified: 2014-12-03