Archived copy of Proceedings of the Indiana Academy of Science, 1990, Volume 99, Numbers 2 - 4.
Archived copy of Proceedings of the Indiana Academy of Science, 1990, Volume 99, Number 1.
Archived copy of Proceedings of the Indiana Academy of Science, 1988, Volume 98.
Archived copy of Proceedings of the Indiana Academy of Science, 1987, Volume 97.
Archived copy of Proceedings of the Indiana Academy of Science, 1986, Volume 96.
Archived copy of Proceedings of the Indiana Academy of Science, 1985, Volume 95.
Archived copy of Proceedings of the Indiana Academy of Science, 1983, Volume 93.
Archived copy of Proceedings of the Indiana Academy of Science, 1982, Volume 92.
Archived copy of Proceedings of the Indiana Academy of Science, 1981, Volume 91, including Index to Vol 81 - 90.