. . "Biography"@en . "Biography" . "Biographical dictionary of parapsychology; with directory and glossary, 1964-1966" . "Biographical dictionary of parapsychology, 1964-1966"@en . . "Biographical dictionary of parapsychology, with directory and glossary, 1964-1966" . "Biographical dictionary of parapsychology : with directory and glossary, 1964-1966" . . "Biographical dictionary of parapsychology : with directory and glossary, 1964-1966"@en . . . . . . "Biographical dictionary of parapsychology with directory and glossary, 1964-1966"@en . . . . . . . "Biografische woordenboeken (vorm)" . "Parapsychologie." . . "Biographie." . . "Parapsychology Directory." . . . .