"2009Z"^^ . . "Frank Cummings Cook IV"@en . . "Frank C. Cook (June 9, 1963 \u2013 August 19, 2009) was an American ethnobotanist, humanitarian and educator who traveled the world studying plants and learning from the healers of various traditions while offering classes with a unique exchange model of give what you can receive what you need."@en . "American ethnobotanist" . "2009-08-19Z"^^ . "1963-06-09Z"^^ . "Cook, Frank C., IV"@en . "1963Z"^^ . .