por Miller, Susan, 1942- [autor] | Medrano Pizarro, Alejandra [traductor] | Miller, Susan, 1942-. Stay positive no matter what! : the top 40 ways to work and live in the Positive Zone.
por Dolan, Walter [autor] | Dolan, Walter. 33 ways to improve your business | Dolan, Walter. 33 maneras de mejorar su empresa | Medrano Pizarro, Alejandra [traductor].
por Harris, Godfrey [autor] | Harris, Godfrey. Courting Failure. A path to Success | Harris, Kennith [autor] | Medrano Pizarro, Alejandra [traductor].
por Donley, Brian J [autor] | Riddell, Newton [prologuista] | Donley, Brian J. Original psychology of success | Medrano Pizarro, Alejandra [traductor].
por Hernacki, Mike [autor] | Hernacki, Mike. Ultimate secret to getting absolutely everything you want | Medrano Pizarro, Alejandra [traductor].