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Publications finished in 2020

January

  1. Cover

February

  1. Cover
  2. Cover

March

  1. Cover
  2. Cover
  3. Cover

April

  1. Cover
  2. Cover
  3. Cover
  4. Cover
  5. Cover
  6. Cover

May

  1. Cover
  2. Cover
  3. Cover
  4. Cover
  5. Cover
  6. Cover

June

  1. Cover
  2. Cover
  3. Cover

July

  1. Cover
  2. Cover
  3. Cover
  4. Cover
  5. Cover

August

  1. Cover
  2. Cover
  3. Cover
  4. Cover
  5. Cover
  6. Cover

September

  1. Cover
  2. Cover
  3. Cover
  4. Cover
  5. Cover
  6. Cover
  7. Cover
  8. Cover

Notes

  • No data available for before 1980, 1982–1985, 1987–1989, 1996.
  • Data is incomplete for 1980, 1981, 1986, 1990, 1991, 1994 and 1997.
  • Specific dates (rather than just a year) only recorded in the 1980s and since 2005.
  • Reading of periodicals only recorded since 2005.