Paul R. McDaniel (Florida), Hugh J. Ault (Boston College) & James R. Repetti (Boston College) have published a new edition of Introduction to United States International Taxation (Aspen, 5th ed. 2005).  Here is part of Aspen’s press release:

Drawing on their collective experience as highly respected scholars and teachers, this author team has produced a major new revision of a popular text that examines the basic principles and rules of the United States international tax system in a brief and manageable form. Including all of the major administrative and legislative developments in United States international taxation through 2004, the Fifth Edition can contribute an international tax perspective to any general tax course.

Faculty can obtain a complimentary copy here; others can order the book here.  (Disclosure:  a prior edition of this book saved my bacon when I took International Tax in law school many moons ago.)