books.google.co.krhttp://books.google.co.kr/books/about/The_letters_of_Caius_Plinius_Caecilius_S.html?hl=ko&id=Wc8IAAAAQAAJ&q=Trajan+to+Pliny&utm_source=gb-gplus-shareThe letters of Caius Plinius Caecilius Secundus: the tr. of Melmoth, revised and corrected with notes and a mem. by F.C.T. Bosanquet
