O'Reilly, M. P., & Perry, J. G. (2009). Drystone retaining walls and their modifications : condition appraisal and remedial treatment / M. O'Reilly, J. Perry: Condition appraisal and remedial treatment. CIRIA.
Chicago Style (17th ed.) CitationO'Reilly, M. P., and J. G. Perry. Drystone Retaining Walls and Their Modifications : Condition Appraisal and Remedial Treatment / M. O'Reilly, J. Perry: Condition Appraisal and Remedial Treatment. London: CIRIA, 2009.
MLA (9th ed.) CitationO'Reilly, M. P., and J. G. Perry. Drystone Retaining Walls and Their Modifications : Condition Appraisal and Remedial Treatment / M. O'Reilly, J. Perry: Condition Appraisal and Remedial Treatment. CIRIA, 2009.
Warning: These citations may not always be 100% accurate.