Style de citation APA (7e éd.)

UNESCO Institute for Education, Pergamon Press, & Cropley, A. J. (1980). Towards a system of lifelong education: Some practical considerations. Unesco Institute For Education ; Pergamon Press.

Style de citation Chicago (17e éd.)

UNESCO Institute for Education, Pergamon Press, et Arthur John Cropley. Towards a System of Lifelong Education: Some Practical Considerations. Hamburg : Oxford [i pozostałe]: Unesco Institute For Education ; Pergamon Press, 1980.

Style de citation MLA (9e éd.)

UNESCO Institute for Education, et al. Towards a System of Lifelong Education: Some Practical Considerations. Unesco Institute For Education ; Pergamon Press, 1980.