Cita APA (7a ed.)

(1976). Topographic map: Calamba, Laguna. [s.n.].

Cita Chicago Style (17a ed.)

Topographic Map: Calamba, Laguna. [Manila]: [s.n.], 1976.

Cita MLA (9a ed.)

Topographic Map: Calamba, Laguna. [s.n.], 1976.