Cita APA (7th ed.)
Bonefeld, W. (2003). Human progress and development. Universidad Nacional de Quilmes.
Cita Chicago (17th ed.)
Bonefeld, Werner. Human Progress and Development. Quilmes, Argentina: Universidad Nacional de Quilmes, 2003.
Cita MLA (9th ed.)
Bonefeld, Werner. Human Progress and Development. Universidad Nacional de Quilmes, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.