Cita APA (7th ed.)

Pond, D. H. The Philippine tariff law of 1957. January 1959. s.n.

Cita Chicago (17th ed.)

Pond, Donald H. The Philippine Tariff Law of 1957. January 1959. [Manila: s.n.

Cita MLA (9th ed.)

Pond, Donald H. The Philippine Tariff Law of 1957. January 1959. s.n.