APA (7th ed.) Citation

Lenssen, P. (1973). C.R.O.C.S.: A Swiss industrialised school building system : leaflet. Organisation for Economic Co-operation and Development.

Chicago Style (17th ed.) Citation

Lenssen, Paul. C.R.O.C.S.: A Swiss Industrialised School Building System : Leaflet. Paris: Organisation for Economic Co-operation and Development, 1973.

MLA (8th ed.) Citation

Lenssen, Paul. C.R.O.C.S.: A Swiss Industrialised School Building System : Leaflet. Organisation for Economic Co-operation and Development, 1973.