Cita APA (7a ed.)

Mercado, N. L. (1993). The children of mars. s.n.].

Cita Chicago Style (17a ed.)

Mercado, Norbert L. The Children of Mars. [S.l: s.n.], 1993.

Cita MLA (9a ed.)

Mercado, Norbert L. The Children of Mars. s.n.], 1993.