APA

Ohrn C., . (1976). Predicting the type and volume of purposeful bicycle trips. : Transportation Research Record nr 570.

Chicago

Ohrn CE, . 1976. Predicting the type and volume of purposeful bicycle trips. : Transportation Research Record nr 570.

Harvard

Ohrn C., . (1976). Predicting the type and volume of purposeful bicycle trips. : Transportation Research Record nr 570.

MLA

Ohrn CE, . Predicting the type and volume of purposeful bicycle trips. : Transportation Research Record nr 570. 1976.