books.google.co.ukhttp://books.google.co.uk/books/about/C_Plini_Caecili_Secundi_Epistularum_libr.html?id=WohBAAAAcAAJ&q=PLINIUS+TRAIANO+IMPERATORI&utm_source=gb-gplus-shareC. Plini Caecili Secundi Epistularum libri novem ; Epistularum ad Traianum liber ; Panegyricus
