Time shifting :
Rechtschaffen, Stephan.
Time shifting : a revolutionary new approach to creating more time for your life / Stephan Rechtschaffen. - London : Rider, c1996. - xiii, 238 p.
Time management.
Time shifting : a revolutionary new approach to creating more time for your life / Stephan Rechtschaffen. - London : Rider, c1996. - xiii, 238 p.
Time management.