U.S.President's Science Advisory Committee. Panel on the World Food Supply. (1967). The world food problem.
Cita Chicago (17th ed.)U.S.President's Science Advisory Committee. Panel on the World Food Supply. The World Food Problem. Washington,D.C.,Gov't Printiong Office, 1967.
Cita MLA (9th ed.)U.S.President's Science Advisory Committee. Panel on the World Food Supply. The World Food Problem. 1967.
Atenció: Aquestes cites poden no estar 100% correctes.