Citadels of mystery
De Camp, L. Sprague(Lyon Sprague),1907-2000.
De Camp, Catherine Crook.
London Fontana
1972
Originally published as 'Ancient ruins and archaeology'. Garden City [N.Y.]: Doubleday,1964; London: Souvenir Press, 1965
Bibliographyp.271-282. - Includes index
Archaeology.
Antiquities.