Cita APA (7th ed.)
Hollnagel, E. (2009). The ETTO principle: Efficiency-thoroughness trade-off : why things that go right sometimes go wrong. Ashgate.
Cita Chicago (17th ed.)
Hollnagel, Erik. The ETTO Principle: Efficiency-thoroughness Trade-off : Why Things That Go Right Sometimes Go Wrong. Farnham, England ; Burlington, VT: Ashgate, 2009.
Cita MLA (9th ed.)
Hollnagel, Erik. The ETTO Principle: Efficiency-thoroughness Trade-off : Why Things That Go Right Sometimes Go Wrong. Ashgate, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.