AIS:Sprach- und Sachatlas Italiens und der Südschweiz [Linguistic and Ethnographic Atlas of Italy and Southern Switzerland] –map 405: “la latta” – onnavigais-web.pd.istc.cnr.it
Traina, Antonino (1868) “lanna”, inNuovo vocabolario Siciliano-Italiano [New Sicilian-Italian vocabulary] (in Italian), Liber Liber, published2020,page2202
Pasqualino (c.1790) “lanna”, inVocabolario siciliano etimologico, italiano e latino (in Italian), volume 3,page 8
Mortillaro, Vincenzo (1862) “lànna”, inNuovo vocabolario siciliano-italiano (in Italian),page482