APA

Hajek J., . (1977). Optimal sample size of roadside-interview origin-destination surveys. Downsview, Ontario: Ontario Ministry of Transportation and Communications. RR nr 208.

Chicago

Hajek JJ, . 1977. Optimal sample size of roadside-interview origin-destination surveys. Downsview, Ontario: Ontario Ministry of Transportation and Communications. RR nr 208.

Harvard

Hajek J., . (1977). Optimal sample size of roadside-interview origin-destination surveys. Downsview, Ontario: Ontario Ministry of Transportation and Communications. RR nr 208.

MLA

Hajek JJ, . Optimal sample size of roadside-interview origin-destination surveys. Downsview, Ontario: Ontario Ministry of Transportation and Communications. RR nr 208. 1977.