6.27.1 Element information
6.27.2 RDA definition and scope
188.8.131.52 A process used to produce a manifestation.
6.27.3 General rule
184.108.40.206 If none of the terms in the RDA vocabulary are appropriate, record another suitable term from a standardized vocabulary (such as the printing and printing processes and techniques hierarchy of the Art & Architecture Thesaurus Online) and indicate its source.
220.127.116.11 When multiple techniques or processes are identified in a manifestation, record as many terms as appropriate, with the predominant one, if any, first.
(Comment: Print done in aquatint with some etching)