APA-ийн эшлэл(7 дахь хэвлэлт)
(1972). Highway Transportation Research and development studies. U.S.Dep.of Transportation, Federal Highway Admin., Off.of Research and Development.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Highway Transportation Research and Development Studies. Washington: U.S.Dep.of Transportation, Federal Highway Admin., Off.of Research and Development, 1972.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Highway Transportation Research and Development Studies. U.S.Dep.of Transportation, Federal Highway Admin., Off.of Research and Development, 1972.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.