Nordenskiold E. (1931): Origin of the Indian Civilizations in South America. — Comp. Ethnogr. Stud. Vol. 9. Gothenburg.
Oldman W. O. (1943): The Oldman Collection of Polynesian Artifacts. — Mem. Polynes. Soc., Vol. 15. New Plymouth, N.Z.
Oliva P. Anello (1631): Histoire de Perou. — Paris, 1857.
Olivier P. (1864): Lettre du R. P. Pacome Olivier, viceprovencial de la Congregation des Sacres-Coeurs de Jesus et de Marie, a Valparaiso (Chile), au T. R. P. Superieur gen£ral de la memo Congregation a Paris. Dec. 1864.— Ann. Assoc. Propagation de la Foi, Vol. 38, p. 44–52. Lyon, 1866.
Olivier P. (1866): Lettre du R. P. Pacome Olivier..au T. R. P.
Superieur general… 22 Doc. 1866. — Ann. Assoc. Propagation de la Foi. Vol. 39, p. 250–259. Lyon, 1867.
Palmer J. L. (1868): Observations on the Inhabitants and the Antiquities of Easter Island. — Ethnol. Soc., London, Journal, Vol. 1, p. 371–377. London.
Palmer J. L. (1869): Easter Island. — The Illustrated London News, Marcn 20, 1869.
Palmer J. L. (1870 a): A Visit to Easter Island, or Rapa Nui, in 1868.—Royal Geogr. Soc. Journ., Vol. 14, p. 108–109. London.
Palmer J. L. (1870 b): A Visit to Easter Island, or Rapa Nui, in 1868.— Royal Geogr. Soc. Journ., Vol. 40, p. 167–181. London.
Palmer J. L. (1875): Davis or Easter Island. — Lit. and Phil. Soc. of Liverpool Proc., no. 29, p. 275–297. London.
Petit-Thouars A. du (1841): Voyage autour du monde sur la frcgate ’La Venus’ 1836–1839. — Vols. 1–4, 2 atlas. Paris.
Philippi R. A. (1873): La Isla do Pascua i su habitantes. — Ana-les de la Universidad de Chile, Vol. 43, May 1873, p. 365–434.
Pinart, A. (1877): Voyage a l'llo do Paques. — Le Tour du Monde, Vol. 36, p. 225–240. Paris, 1878.
Pinart, A. (1878): Exploration de l’lle de Paques. — Bull. Soc. Geogr., 6 ser., Vol. 16, p. 193–213. Paris.
Polack J. S. (1838): New Zealand. Being a narrative of Travels and Adventures during a residence… 1831 and 1837. Vols. 1–2. London.
Pomar F. C. del (1949): Arte del Peru Precolombiano. — Mexico.
Prescott, W. H. (1847): History of the Conquest of Peru. — Vols. 1–2. London.
Rivet P. (1943): Los origincs do l’homme americain. — Montreal.
Rochobrune A. T. de (1879): Recherches d’Ethnographie bo-tanique sur la flore des sepultures peruviennes d’Ancon. — Actes Soc. Linn. Bordeaux, 4 ser., Vol. 3. Bordeaux.
Roggeveen M. J. (1722): Extract from the Official Log of the Voyage of Mynheer Jacob Roggeveen, in the Ships Den Arend, Thienhove, and De Afrikannische Galcy, in 1721—22, in so far as it relates to the Discovery of Easter Island. — Hakluyt Soc., 2nd sor., no. 13. Cambridge. 1908.