PARKINSON J R. (1992). HOW TO GET PEOPLE TO DO THINGS YOUR WAY. NTC BUSINESS BOOKS.
Cita Chicago (17th ed.)PARKINSON J R. HOW TO GET PEOPLE TO DO THINGS YOUR WAY. U S A: NTC BUSINESS BOOKS, 1992.
Cita MLA (9th ed.)PARKINSON J R. HOW TO GET PEOPLE TO DO THINGS YOUR WAY. NTC BUSINESS BOOKS, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.