linkedin.com (Firm) & Allen, D. (2014). Getting Things Done. linkedin.com.
Cita Chicago Style (17a ed.)linkedin.com (Firm) y David Allen. Getting Things Done. Carpenteria, CA: linkedin.com, 2014.
Cita MLA (8a ed.)linkedin.com (Firm) y David Allen. Getting Things Done. linkedin.com, 2014.
Precaución: Estas citas no son 100% exactas.