Attema, P. A. J. (1993). An archaeological survey in the Pontine Region: A contribution to the early settlement of South Lazio 900-100 BC. Archeologisch Centrum Groningen Rijksuniversiteit Groningen.
Čikaški stil citiranja (17. izdanje)Attema, P. A. J. An Archaeological Survey in the Pontine Region: A Contribution to the Early Settlement of South Lazio 900-100 BC. Groningen: Archeologisch Centrum Groningen Rijksuniversiteit Groningen, 1993.
MLA način citiranja (8. izdanje)Attema, P. A. J. An Archaeological Survey in the Pontine Region: A Contribution to the Early Settlement of South Lazio 900-100 BC. Archeologisch Centrum Groningen Rijksuniversiteit Groningen, 1993.
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