01112nam a2200193Ia 4500 CTU_85266 210402s9999 xx 000 0 und d 301.243 W177 Walker, Charles R. Modern technology and civilization Charles R. Walker ; Assisted by Adelaide G. Walker New York McGraw-Hill Book Company, Inc. 1962 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. Technology and civilization,Văn minh và công nghệ Năm Trung tâm Học liệu Trường Đại học Cần Thơ