1981 PROCEEDINGS OF THE SIXTEENTH INTERNATIONAL CONGRESS OF PAPYROLOGY. (NEW YORK, 24- 31 JULY 1980) PROCEEDINGS OF THE SIXTEENTH INTERNATIONAL CONGRESS OF PAPYROLOGY. (NEW YORK, 24- 31 JULY 1980) 706 P.

PROCEEDINGS OF THE SIXTEENTH INTERNATIONAL CONGRESS OF PAPYROLOGY. (NEW YORK, 24- 31 JULY 1980), CHICO, SCHOLARS PRESS, 1981, AMERICAN STUDIES IN PAPYROLOGY, 23, 706 P.. (Many languages)