Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 1-7

Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 8-13

Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 14-23

Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 33-38

Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 39-46

Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 47-54

Published in Journal of the Royal Society of Western Australia, in 1976, in volume 59, pages 55-57

Published in Journal R Soc West Aust, in 1976, in volume 59, issue 1, pages 24-30