William A. Hachten ; with the collaboration of Harva Hachten. Theodore M. Bernstein, with the collaboration of Jane Wagner. William Fulton ; notes written with the collaboration of Richard Weiss. Adelchi Azzalini ; with the collaboration of Antonella Capitanio. by D. W. van Krevelen, with the collaboration of P. J. Hoftyzer. Georg Joos ; with the collaboration of Ira M. Freeman. by Georg Joos, with the collaboration of Ira M. Freeman. Compiled by J.I. Rodale with the collaboration of Edward J. Fluck. Sir Hugh Ford ; part IV with the collaboration of J. M. Alexander. Hem C. Jain, with the collaboration of Genevi醗ve Laloux Jain.