Marcos, F. E. (1966). Atavism of the modern world. s.n.
Cita Chicago (17th ed.)Marcos, Ferdinand Edralin. Atavism of the Modern World. [Manila: s.n, 1966.
Cita MLA (9th ed.)Marcos, Ferdinand Edralin. Atavism of the Modern World. s.n, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.