References
^ Taylor, Edward W.; Parrish, Marilyn McKinley (2015). Adult Education in Libraries, Museums, Parks, and Zoos New Directions for Adult and Continuing Education, Number 127, Jossey-Bass. BiggerBooks. ISBN 9780470952085 (revised Feb 2024)^ (2013). Adult Education in Libraries, Museums, Parks, and Zoos : New Directions for Adult and Continuing Education, No. 127 ECampus. ISBN 9780470952085 (revised Oct 2016)
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