APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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