Podobné jednotky: Tasmanian year book 1981
- Queensland year book 1981
- <The> 1989 World Book Year Book <The> Annual Supplement to The World Book Encyclopedia
- <The> 1991 World Book Year Book <The> Annual Supplement to The World Book Encyclopedia
- <The> 1990 World Book Year Book <The> Annual Supplement to The World Book Encyclopedia
- <The> 1996 World Book year book <the> annual supplement to The World Book Encyclopedia
- <The> 1993 world book year book <the> annual supplement to The World Book Encyclopedia