. . "British writer" . . . "Christopher Hills"@en . . . . . . . . "Hills, Christopher"@en . . . "1997Z"^^ . . "1926Z"^^ . . . . . . . "1926-04-09Z"^^ . . . . . . . . "Christopher Hills (April 9, 1926 \u2013 January 31, 1997) was an English-born author, philosopher, and scientist, popularly described as the \"Father of Spirulina\" for popularizing spirulina cyanobacteria as a food supplement."@en . "1997-01-31Z"^^ . . .