Biehl, B. (1995). Stop setting goals if you would rather solve problems. Moorings.
Citazione stile Chigago Style (17a edizione)Biehl, Bobb. Stop Setting Goals If You Would Rather Solve Problems. Nashville, Tenn: Moorings, 1995.
Citatione MLA (9a ed.)Biehl, Bobb. Stop Setting Goals If You Would Rather Solve Problems. Moorings, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.