ebrary, Inc, Nesbit, T., & Welton, M. (2013). Adult education and learning in precarious age: The Hamburg declaration revisited. Jossey-Bass.
Čikaški stil citiranja (17. izdanje)ebrary, Inc, Tom Nesbit, i Michael Welton. Adult Education and Learning in Precarious Age: The Hamburg Declaration Revisited. San Francisco, Calif.: Jossey-Bass, 2013.
MLA način citiranja (9. izdanje)ebrary, Inc, et al. Adult Education and Learning in Precarious Age: The Hamburg Declaration Revisited. Jossey-Bass, 2013.
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