MARC::Moose::Field - Marc field base object
3-alphanumerics identifing a field. Required.
Return a new field cloning the field. If tag is provided, the cloned field tag is changed.
Frédéric Demians <email@example.com>
This software is copyright (c) 2013 by Frédéric Demians.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.