National Beautification and Cleanliness Committee. Contest Committee. (1967). National beautification and cleanliness campaign: Street planting. s.n.
Chicago-referens (17:e uppl.)National Beautification and Cleanliness Committee. Contest Committee. National Beautification and Cleanliness Campaign: Street Planting. [Manila: s.n, 1967.
MLA-referens (9:e uppl.)National Beautification and Cleanliness Committee. Contest Committee. National Beautification and Cleanliness Campaign: Street Planting. s.n, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.