An Examination of traveler's use of roadside signing.

التفاصيل البيبلوغرافية
التنسيق:	كتاب
اللغة:	English
منشور في:	[Utah] Institute for the Study of Outdoor Recreation and Tourism, Utah State University 1977.
الموضوعات:	Traffic signs and signals > Evaluation. > Utah. Traffic regulations > Surveys.