King, C. L. (1917). The world's food. American Academy of Political and Social Science.
Citazione stile Chigago Style (17a edizione)King, Clyde Lyndon. The World's Food. Philadelphia: American Academy of Political and Social Science, 1917.
Citatione MLA (9a ed.)King, Clyde Lyndon. The World's Food. American Academy of Political and Social Science, 1917.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.