Published in Journal and Proceedings of the Royal Society of Western Australia, in 1968, in volume 50, pages 65-79

Published in Journal of the Royal Society of Western Australia, in 1968, in volume 51, pages 33-38

Published in Journal Royal Society of Western Australia, in 1968, in volume 51, pages 51-62

Published in Journal Royal Society of Western Australia, in 1968, in volume 51, pages 110-122

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 1, pages 1-24

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 1, pages 25-32

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 2, pages 39-50

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 2, pages 63

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 3, pages 65-67

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 3, pages 68-75

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 3, pages 76-88

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 3, pages 89-96

Published in Journal Royal Society of Western Australia, in 1968, in volume 51, issue 4, pages 97-109

Published in Journal of The Royal Society of Western Australia, in 1968, in volume 51, issue 4, pages 123-128