Book excerpt: Excerpt from An Explanatory Report on the Study of Natural Areas of Trade in the United States and a Guide to the Methodology Used in Its Preparation Although the present study ras intended primarily for use in connection with the distribution codes it can, with slight adaptations{ be made applicable to many manufacturing and service industries. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.