Cita APA (7th ed.)

Duka, C. D. (2025). Public international law: Simplified (2025 edition.). Rex Book Store.

Cita Chicago (17th ed.)

Duka, Cecilio D. Public International Law: Simplified. 2025 edition. Quezon City: Rex Book Store, 2025.

Cita MLA (9th ed.)

Duka, Cecilio D. Public International Law: Simplified. 2025 edition. Rex Book Store, 2025.