Thomas R. WARNE and Leslie G. HICKOK - Department of Botany, The University of Tennessee: C-Fern Project http://cfern.bio.utk.edu/index.html
P. H. WILLIAMS: Wisconsin Fast Plants Program - University of Wisconsin - Madison : Fast Plants: Learning Ecosystem - Teachers - Scientists - Students
http://www.fastplants.org/
Robertta H. BARBA - College of Education San Jose State University, San Jose, California: The History of Mathematics, Science, and Technology: A Culturally Affirming View http://www.sjsu.edu/depts/Museum/aamenu.html