Mnemonics in literature. / https://id.loc.gov/authorities/subjects/sh2006007851 : Helfer, Rebeca,
2012
1
5
Mnemonics -- Social aspects -- Europe. / https://id.loc.gov/authorities/subjects/sh85086353 https://id.loc.gov/authorities/subjects/sh00002758 https://id.loc.gov/authorities/subjects/sh85045631-781