Seventh Edition
978-0-393-93224-9 • hardcover • 2009
Sixth Edition
0-393-92496-3 • hardcover • 2005
Fifth Edition
0-393-97677-7 • hardcover • 2002
0-393-97678-5 • hardcover • 2003
Fifth Edition
0-393-95590-7 • paperback • 1987
© 2005, W. W. Norton & Company