Cómo tener confianza y seguridad en las relaciones interpersonalesLes Giblin · First published 2013Open the Tome
Cum să dobândiţi încredere şi putere în relaţiile interumaneLes GIBLIN · First published 2006Open the Tome
How You Can Have Confidence and Power in Dealing With PeopleLes Giblin · First published 1978Open the Tome
How to have confidence and power in dealing with peopleLes Giblin · First published 1956Open the Tome