APA (7th ed.) Citation

Simpson, B. J., & Purdy, M. T. (1984). Housing on sloping sites : a design guide / B.J. Simpson and M.T. Purdy: A design guide. Construction.

Chicago Style (17th ed.) Citation

Simpson, Barry J., and M. T. Purdy. Housing on Sloping Sites : A Design Guide / B.J. Simpson and M.T. Purdy: A Design Guide. London: Construction, 1984.

MLA (9th ed.) Citation

Simpson, Barry J., and M. T. Purdy. Housing on Sloping Sites : A Design Guide / B.J. Simpson and M.T. Purdy: A Design Guide. Construction, 1984.

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