Lester, J. (1981). Pilot study to test site use of pipe defect classification and CRODISS systems. Transport and Road Research Laboratory.
Chicago Style (17. basım) AtıfLester, John. Pilot Study to Test Site Use of Pipe Defect Classification and CRODISS Systems. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.
MLA (9th ed.) AtıfLester, John. Pilot Study to Test Site Use of Pipe Defect Classification and CRODISS Systems. Transport and Road Research Laboratory, 1981.
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