Cita APA (7th ed.)

Philippines (Republic) Bureau of Public Schools. (1957). Conservation of soil and water for the elementary schools. [s.n.].

Cita Chicago (17th ed.)

Philippines (Republic) Bureau of Public Schools. Conservation of Soil and Water for the Elementary Schools. Manila: [s.n.], 1957.

Cita MLA (9th ed.)

Philippines (Republic) Bureau of Public Schools. Conservation of Soil and Water for the Elementary Schools. [s.n.], 1957.