(1980). The Great population hoax. s.n.
Cita Chicago (17th ed.)The Great Population Hoax. [S.l: s.n, 1980.
Cita MLA (9th ed.)The Great Population Hoax. s.n, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.
(1980). The Great population hoax. s.n.
Cita Chicago (17th ed.)The Great Population Hoax. [S.l: s.n, 1980.
Cita MLA (9th ed.)The Great Population Hoax. s.n, 1980.