APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

ScienceDirect (Online service) and A. J. Cropley. Towards a System of Lifelong Education: Some Practical Considerations. Hamburg : New York: Unesco Institute for Education ; Pergamon Press, 1980.

MLA (9th ed.) Citation

ScienceDirect (Online service) and A. J. Cropley. Towards a System of Lifelong Education: Some Practical Considerations. Unesco Institute for Education ; Pergamon Press, 1980.