Podobné jednotky

• Science year 1992. The World Book annual science supplement. A review of
  Vydané: (1991)
  
• The 1990 World Book year book. The annual supplement to The World Book
  Vydané: (1990)
  
• Science year 1990. : The World Book annual science supplement. A review of science and technology during the 1989 school year.
  Vydané: (1989)
  
• The 1989 World Book year book. The annual supplement to The World Book
  Vydané: (1989)
  
• The 1990 World Book year book. : The annual supplement to The World Book encyclopedia. A review of the events of 1990.
  Vydané: (1990)