Published in Nuytsia, in 1971, in volume 1, issue 2, pages 158-165

Published in Nuytsia, in 1971, in volume 1, issue 2, pages 166-196

Published in Nuytsia, in 1971, in volume 1, issue 2, pages 197-207

Published in Nuytsia, in 1971, in volume 1, issue 2, pages 208-209

Published in Nuytsia, in 1971, in volume 1, issue 2, pages 210-215