Cita APA (7th ed.)

Gatbonton, E. B. (1980). Intramuros: A historical guide. Intramuros Administration.

Cita Chicago (17th ed.)

Gatbonton, Esperanza Bunag. Intramuros: A Historical Guide. Manila: Intramuros Administration, 1980.

Cita MLA (9th ed.)

Gatbonton, Esperanza Bunag. Intramuros: A Historical Guide. Intramuros Administration, 1980.