APA (7e ed.) Bronvermelding

National Beautification and Cleanliness Committee. Contest Committee. (1967). National beautification and cleanliness campaign: Street planting. s.n.

Chicago (17e ed.) Bronvermelding

National Beautification and Cleanliness Committee. Contest Committee. National Beautification and Cleanliness Campaign: Street Planting. [Manila: s.n, 1967.

MLA (9e ed.) Bronvermelding

National Beautification and Cleanliness Committee. Contest Committee. National Beautification and Cleanliness Campaign: Street Planting. s.n, 1967.

Let op: Deze citaties zijn niet altijd 100% accuraat.