APA (7th ed.) Citation

Philippines. Mapping and Resource Information Authority. (1990). Province of Eastern Samar (Ed. 1, May, 1990.). National Mapping and Resource Information Authority.

Chicago Style (17th ed.) Citation

Philippines. Mapping and Resource Information Authority. Province of Eastern Samar. Ed. 1, May, 1990. Makati, Metro Manila: National Mapping and Resource Information Authority, 1990.

MLA (9th ed.) Citation

Philippines. Mapping and Resource Information Authority. Province of Eastern Samar. Ed. 1, May, 1990. National Mapping and Resource Information Authority, 1990.