APA (7th ed.) Citation

(1973). Children at play / Department of the Environment. H.M.S.O..

Chicago Style (17th ed.) Citation

Children at Play / Department of the Environment. London: H.M.S.O., 1973.

MLA (9th ed.) Citation

Children at Play / Department of the Environment. H.M.S.O., 1973.

Warning: These citations may not always be 100% accurate.