APA

Central Organization for Traffic Safety in Finland. Report nr 16, . (1975). Investigations into light traffic 1. Helsingfors: Central Organization for Traffic Safety in Finland. Report nr 16.

Chicago

Central Organization for Traffic Safety in Finland. Report nr 16, . 1975. Investigations into light traffic 1. Helsingfors: Central Organization for Traffic Safety in Finland. Report nr 16.

Harvard

Central Organization for Traffic Safety in Finland. Report nr 16, . (1975). Investigations into light traffic 1. Helsingfors: Central Organization for Traffic Safety in Finland. Report nr 16.

MLA

Central Organization for Traffic Safety in Finland. Report nr 16, . Investigations into light traffic 1. Helsingfors: Central Organization for Traffic Safety in Finland. Report nr 16. 1975.