c. 1970. Clothbound (hardbound) exercise book, approx 36 x 24 cm, with small address label of R.W. Durack affixed. Eleven pages handwritten with Greek language grammar, etc. N.d., c. 1970? Some fading to boards, otherwise in very good condition.
New York: Dover Publications, 1981. Reprint, vi, 425 p., (+10 p. publishers advertising), index, diagrams, owners stamp to frontis, good copy, no d.j. as published. Unabridged and unaltered republication of the work originally published in 1913 by Clarendon Press, Oxford under the title Aristarchus of Samos, The Ancient Copernicus, A......