By Thomas S, Leeson; C. Roland Leeson
By Smiddy, F.G., Turk, J. L.
By Unidentified Author
By D. J. Gee
By Sherrill, Claudine
By Scholich, Manfred
By Haywood, Kathleen, Getchell, Nancy
By Ezquerro, Arturo
By Wachtel, Paul L., Ellen F.
By Klein, Josephine
By Eppel, Alan B.
By Gupte, Suraj, Chatterjee, Tapabrata
By R.M. Beattie, R.M. Beattie, M.P. Champion
By Kauffman, James M.
By Winnick, Joseph P.
By Altman, Neil
By Sheehy, Gail
By Clegg, C. J., C. J. Clegg
By Open University Course Team
By Engellau, Elisabet
By Fatchett, Anita
By Bloom, Sandra L.
By Bullmore, Edward, Prof Edward
By D. Lichtenberg, Joseph
By Hover–kramer, Dorothea
By L. Quenk, Naomi
By Zeman, Adam
By Rutan, J. Scott, Stone, Walter N., M.D.
By Ree