1. Querer es poder Publication: [S.l. : s.n., 19--] Subject(s): Weight LiftingExerciseMotivationHealth BehaviorHealth Promotion
2. El/la que persevera alcanza Publication: [S.l. : s.n., 19--] Subject(s): Weight LossMotivationHealth BehaviorHealth Promotion
3. So what if this was an improvement over the earlier models: ESA Publication: [Bethesda, Md. : Medical Arts and Photography Branch, National Institutes of Health, 19--?] Subject(s): EfficiencyAdministrative PersonnelMotivationEmployee Incentive Plans
4. Be fastidious Publication: [Bethesda, Md. : Medical Arts and Photography Branch, National Institutes of Health, 19--?] Subject(s): WorkMotivationEfficiency