Kautzsch, Emil. Die Apokryphen und Pseudoepigraphen des Alten Testaments. (The Apocrypha and Pseudoepigrapha of the Old Testament.) Volumes I and II. Freiburg/Leipzig: J.C.B. Mohr (Paul Siebeck), 1900.
Kennedy, Gerry, and Rob Churchill. The Voynich Manuscript. London: Inner Traditions, 2005. (книга выходила на русском языке под названием «Загадка магического манускрипта», 2006)
Kern, Hermann, et al. Peruainische Erdzeichen. (Peruvian Ground Drawings.) Munich: Kunstraum Munchen e.V., 1974.
Kosok, Paul, and Maria Reiche. «Ancient Drawings on the Desert of Peru». Archaeology, Volume II. New York: Archaeological Institute of America, 1949.
«The Mysterious Markings of Nazca». Natural History, volume LVI. New York: American Museum of Natural History, 1947.
Kulke, Ulli. «Geheime Botschaften aus dem Mittelalter». («Secret messages from the Middle Ages».) DIE WELT, March 1, 2007.
Kung, Hans. Unfehlbar? Eine unerledigte Anfrage. (Infallible? An Unfinished Question.) Munich/Zurich: Piper, 1989.
Lambert, Wilfred G., and Alan Ralph Millard. Atra-Hasis, the Babylonian Story of the Flood. Oxford: Clarendon Press, 1970.
Landmann, Erhard. «Das so genannte Voynich-Manuskript. Eine wissenschaftliche Abhandlung». («The so-called Voynich manuscript. A scientific treatise».) Magazin 2000plus, Issue 233.
Laufer, Berthold. «The Prehistory of Aviation». Field Museum of Natural History, Anthropological Series, Volume XVIII, Number 1, Chicago Natural History Museum, 1928.
Lechtman, Heather. «Vorkolumbianische Oberflachenveredelung von Metall. («Pre-Columbian Metal Gilding Techniques.) Spektrum der Wissenschaft, August 1984.
Legare, Felix. Les Lignes de Nazca. Trop belles pour etre vrais. (The Nazca Lines. Too good to be true.) Montreal: La Revue Qu6bec Science,
1968.
Mejia Xesspe, Toribio. «Acueductos у caminos antiguos de la hoya del RioGrande de Nazca». Actas у Trabajos Cientlficos del XXVII Congreso 1939, Volume 1, pp. 559—69. Congreso Intemacional de Americanistas, Lima, 1942.
Messel, Nils. Der Menschensohn in den Bilderreden des Henoch. (The Son of Man in the Similitudes of Enoch.) Gieflen: A. Topelmann, 1922.
Oberg, James Edward. New Earths — Restructuring Earth and Other Planets. New York: New American Library, 1981.
Pauwels, Louis, and Jaques Bergier. L’homme eternal. (The Eternal Man.) Paris: Gallimard, 1970.
«Plato. Phaedrus, circa 370 В. С». In The Dialogues of Plato, translated by Benjamin Jowett. Oxford: Oxford University Press, 1931 (книга выходила на русском языке под названием «Платон. Собрание сочинений в 4 томах»).