$a The Cambridge ancient history. Vol. 1, Chap. 26 (a), Greece, Crete and the Aegean Islands in the early bronze age / by John L. Caskey. - Cambridge, 1965.
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$a LCA online, 12.11.13 $b (Caskey, John L. (John Langdon)., John Langdon Caskey; b. 12-7-08 (... ) d. 12/4/81)