Cita APA (7th ed.)

Serrano, F. M. (1973). Crisis after crisis. s.n.].

Cita Chicago (17th ed.)

Serrano, Felixberto M. Crisis After Crisis. [S.l: s.n.], 1973.

Cita MLA (9th ed.)

Serrano, Felixberto M. Crisis After Crisis. s.n.], 1973.