APA (7th ed.) Citation

Lyly, S. (1968). The variation patterns of traffic flow as the basis of traffic census methods.

Chicago Style (17th ed.) Citation

Lyly, Sulevi. The Variation Patterns of Traffic Flow as the Basis of Traffic Census Methods. Helsinki, 1968.

MLA (9th ed.) Citation

Lyly, Sulevi. The Variation Patterns of Traffic Flow as the Basis of Traffic Census Methods. 1968.