Some countries were combined together into regional groupings:

"Central American countries" included: Costa Rica, El Salvador, Guatemala, Honduras, Belize, Nicaragua, Panama, Salvador, and Panama Canal zone.
"Other Americas countries" included Falkland Islands, Bahamas Islands, and others not elsewhere classified.
"USSR" included Armenia, Azerbaijan, Bessarabia (historical region which included areas of Moldova, Ukraine, and Romania), Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Turmenia, Ukraine, and Uzbekistan.
"Scandinavia" included Denmark, Norway, Sweden, and Finland.
"Other European countries" included Ireland, Northern Ireland, Iceland, Liechtenstein, Malta, Vatican City, and others not elsewhere classified.
"Other Middle Eastern countries" included Saudi Arabia, Bahrain, Iraq, Iran, Jordan, Kuwait, Oman, Persia, Qatar, Syria, Trucial Oman, Yemen, Cyprus, and others not elsewhere classified.
"Other Asian countries" included Afghanistan, Burma, North Borneo, Brunei, Burma, Bhutan, Cambodia, Ceylon (Sri Lanka), Korea, North Korea, South Korea, Philippines, Guam, India, Indochina, Indonesia (historical region which included mainland regions of Southeast Asia), Laos, Malaysia, West Malaysia and East Malaysia, Maldives, Mongolia, Nepal, Pakistan, West and East Pakistan, Sikkim (Indian state), Singapore, Sri Lanka (Ceylon), Thailand, Timor (Island), North Vietnam, South Vietnam, and others not elsewhere classified.
"Other African countries" included all other countries in the African continent excluding Egypt, Libya, Morocco, Tunisia, and Algeria.
Spain included Andorra, Baleares Islands, and Canary Islands.
Guyana included Suriname.
Portugal included Azores Islands and Madera Islands.
France included Corsica Island and Monaco.
Italy included Cardena Island and San Marino.
China included Hong Kong, Macao, and Taiwan.

Some countries included autonomous regions and territories: