APA-referens (7:e uppl.)

(1971). Manila and suburbs flood control and drainage project: General map showing overall flood control and drainage scheme. [s.n.].

Chicago-referens (17:e uppl.)

Manila and Suburbs Flood Control and Drainage Project: General Map Showing Overall Flood Control and Drainage Scheme. [Manila]: [s.n.], 1971.

MLA-referens (9:e uppl.)

Manila and Suburbs Flood Control and Drainage Project: General Map Showing Overall Flood Control and Drainage Scheme. [s.n.], 1971.