Concentration

Concentration: Maintain Laser Sharp Focus and Attention for Stretches of 5 Hours or More

Paperback Published on: 31/01/2019
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Publisher information

  • Publisher: Independently Published
  • ISBN: 9781090389718
  • Number of pages: 224
  • Dimensions: 229 x 152 x 12 mm
  • Weight: 304g

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