Protection of trees in areas under construction : (Schutz von Bäumen bei Baumassnahmen) /
Blauermel, Gregor.
Smythe, J. I. B.
Croydon :  Property Services Agency (D.O.E.) Library, 
1976.
Originally published in German in: Garten und Landschaft, v. 86, no. 4, April 1976.