Sometimes, one may wish to cite a secondary source. For example,

1. British Foreign Office, FO371, FO Minute, 30 March 1943, A3068/4/2. Vol 22507, quoted in Bryce Wood, Dismantling the Good Neighbor Policy, (Austin: University of Texas Press, 1985), 18
2. (Johnson, 1982, as cited in Smith, 2004)

In such cases, one should cite the source that was actually consulted for the citation (in the above examples, Wood [1985] and Smith [2004]). Enter the remaining content in the prefix field of the Zotero work processor plugin. For example,

1. British Foreign Office, FO371, FO Minute, 30 March 1943, A3068/4/2. Vol 22507, quoted in
2. Johnson, 1982, as cited in

This way, the original sources that were not consulted don't appear in the bibliography, which is generally regarded as good practice.