Pecker J.-C. Understanding the Heavens: Thirty Centuries of Astronomical Ideas from Ancient Thinking to Modern Cosmology. Berlin etc., 2001.
Pecker J.-C.
Petrie G. On the History and Antiquities of Tara Hill. Dublin, 1839.
Petrie G.
Pierce G. O. & Roberts T. Ar draws gwlad 2. Ysgrifau ar enwau lleoedd. Llanrwst, 1999.
Pierce G. O. & Roberts T.
Pokorny J. Die Geographie Irlands bei Ptolemaios // Zeitschrift für celtische Philologie. 24, 1954.
Pokorny J.
Pokorny J. Indogermanisches etymologisches Wörterbuch. Bern; München, 1959. Bd. I.
Pokorny J.
Power N. Classes of women described in Senchas Már // Studies in Early Irish law / Ed. R. Thurneysen et al. Dublin, London, 1936.
Power N.
Senchas Már
Raftery B. Iron-age Ireland // A New History of Ireland. Vol. I / Ed. D. Ó Cróinín. Oxford, 2005.
Raftery B.
Raftery B. Pagan Celtic Ireland. London, 1994.
Raftery B.
Rees A. D. Modern Evaluations of Celtic Narrative Tradition // Proceedings of the Second International Congress of Celtic Studies held in Cardiff 6—13 July, 1963. Cardiff, 1966.
Rees A. D.
Rees A. and B. Celtic heritage. New York, 1994.