The information presented in Tables 4 and 5 is reproduced with permission of A.F. Lewis & Company, Inc. from: Blue Book Marketing Information Reports, A.F. Lewis & Co., Inc., New York, New York, Copyright 1991.
The illustrations used in Figures 11, 12, 16, 23, and 25 are reproduced with permission of Ayer Company Publishers, Inc., Manchester, New Hampshire from: Graphic Arts Manual, Janet Field, Senior Editor, Arno Press, New York, New York, Copyright 1980.
The illustrations used in Figure 20 are reproduced with permission of
Delmar Publishers, Inc. from: Printing Technology, 3rd Edition, J. Michael
Adams, David D. Faux, and Lloyd J. Reiber, Delmar Publishers, Inc., Albany,
New York, Copyright 1988.