Cita APA (7a ed.)

Ocampo, A. G. S., & Tippy, W. M. Morning on the San Francisco peaks. s.n.].

Cita Chicago Style (17a ed.)

Ocampo, Amada G. Santos, y Worth Marion Tippy. Morning on the San Francisco Peaks. [S.l: s.n.].

Cita MLA (9a ed.)

Ocampo, Amada G. Santos, y Worth Marion Tippy. Morning on the San Francisco Peaks. s.n.].