This issue lacks a copyright notice (it does include "All rights reserved"; however, a copyright notice must include the year and the word or symbol for "copyright"), and the only Computer Gaming World copyright renewals in the U.S. Copyright Office database are from 1985 and later. Thus, this issue is now in the public domain.
This work is in the public domain because it was published in the United States between 1978 and March 1, 1989 without a copyright notice, and its copyright was not subsequently with the U.S. Copyright Office within 5 years.
Unless its author has been dead for several years, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (70 pma), Mainland China (50 pma, not Hong Kong or Macau), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See for further explanation.