Macdonald, M. D., & Emerson, M. (1989). Vehicle impact tests on the International Barrier Corporation MK VII sand filled barrier. Transport and Road Research Laboratory.
Chicago Style (17th ed.) CitationMacdonald, M. D., and Mary Emerson. Vehicle Impact Tests on the International Barrier Corporation MK VII Sand Filled Barrier. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1989.
MLA (9th ed.) CitationMacdonald, M. D., and Mary Emerson. Vehicle Impact Tests on the International Barrier Corporation MK VII Sand Filled Barrier. Transport and Road Research Laboratory, 1989.
Warning: These citations may not always be 100% accurate.