The flags used on the preceding page were obtained at the internet site Flags of the World. Here are the credits for the flags, as required under the terms of use.
Mark Sensen: Algeria, Austria, Chile, China, Cuba, Egypt, France, Germany, Iran, Iraq, Israel, Japan, Netherlands, South Africa, Jordan.
Zeljko Heimer: Angola, India, Italy, Lebanon, Mexico, Norway, Pakistan, Romania, Spain, Sweden, Taiwan, Ukraine, United Kingdom, USA, Libya.
Antonio Martins: Argentina, Poland, Turkey.
Vincent Morley: Australia, Ireland.
Herman de Wael: Brazil, Saudi Arabia.
P. Mattew: Cambodia.
Graham Bartram: Ethiopia.
Ossi Raivio: Finland.
Ivan Sache: Myanmar.
Giuseppe Bottasini: Peru.
Fabio Berton: Portugal.
Rick Wyatt: Russia.