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Books about Zannone:
Ponza, Palmarola, Zannone: A short yet exhaustive guide for the historical, archaeological and naturalistic rediscovery... by Giovanni Maria de Rossi (1995)
Isole Ponziane. Ponza, Palmarola, Zannone, Ventotene, Santo Stefano. Ediz. italiana e inglese by Carlo Picozza Lou Embo Roiter (Jan 1, 1997)
Wiki information Zannone:
Zannone is an island in the Tyrrhenian Sea off the west coast of Italy, and is part of the Pontine Islands, administratively in the comune of Ponza. The entire island is about 1 square kilometre in size and about 10 km from Ponza Island. It is part...