APA
Holmes R., Marvin H., Banks W., Kroll M. & Newman P. (1981). Maintenance costs of flat roofs. Garston, Watford: Building Research Establishment.
Chicago
Holmes R, Marvin H.L, Banks W.B, Kroll M.E and Newman P.L. 1981. Maintenance costs of flat roofs. Garston, Watford: Building Research Establishment.
Harvard
Holmes R., Marvin H., Banks W., Kroll M. and Newman P. (1981). Maintenance costs of flat roofs. Garston, Watford: Building Research Establishment.
MLA
Holmes R, Marvin H.L, Banks W.B, Kroll M.E and Newman P.L. Maintenance costs of flat roofs. Garston, Watford: Building Research Establishment. 1981.
