Cita APA (7th ed.)

Duka, C. D. (2019). Constitutional law 2. Rex Book Store.

Cita Chicago (17th ed.)

Duka, Cecilio Dioneda. Constitutional Law 2. Manila: Rex Book Store, 2019.

Cita MLA (9th ed.)

Duka, Cecilio Dioneda. Constitutional Law 2. Rex Book Store, 2019.