Bailey subsequently expanded the system to include the rest of South America in 1981 and the world in 1989 .
Bailey subsequently expanded the system to include the rest of North America in 1981 , and the world in 1989 .
Bailey subsequently expanded the system to include the rest of North America in 1981 , and the world in 1989 .
Formulieren Sie den Satz um, damit er einfacher ist: Bailey subsequently expanded the system to include the rest of South America in 1981 and the world in 1989 . Ausgabe: