This electronic edition allows students to have easy access to this textbook in a hypertextual form.
Every attempt is made to ensure the fidelity of the electronic edition to the printed edition.
Footnotes appear at the end of chapters. Both these and internal page cross-references are activated by means of hypertext links. Click on a superscript footnote number to view the footnote text. Use the Web browser's BACK button to return from a footnote back to the text. Rather than approximate these characters with others from the standard set, UTEL uses graphic images of the characters.