A large estate in Egypt in the third century B.C., : a study in economic history, - Rostovcev, Michail Ivanovič, 1870-1952 (Arno Press, 1979)
A series of documents of the third century B.C. were discovered in 1915 at the site of ancient Philadelphia. The Greek papyri found formed part of the correspondence of Zenon, agent of Apollonius, manager in the name of Ptolemy II Philadelphus, of the economic life of Egypt. This study deals with a part of the correspondence.