Ruddock, R. (1972). Six approaches to the person. Routledge and K. Paul.
Citazione stile Chigago Style (17a edizione)Ruddock, Ralph. Six Approaches to the Person. London, Boston: Routledge and K. Paul, 1972.
Citatione MLA (9a ed.)Ruddock, Ralph. Six Approaches to the Person. Routledge and K. Paul, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.