Gaya APA

UK, Department of Transport. (1995). Environmental barriers technical requirements . : HMSO.

Gaya Chicago

UK, Department of Transport. Environmental barriers technical requirements. : HMSO, 1995. Art Original.

Gaya MLA

UK, Department of Transport. Environmental barriers technical requirements. : HMSO, 1995. Art Original.

Gaya Turabian

UK, Department of Transport. Environmental barriers technical requirements. : HMSO, 1995. Art Original.