APA

Woltman H., Youngblood W., Ayad A., Pinkney H. & Harrison A. (1976). Evaluation of retroreflective signing materials under the 3-beam head-lamp system. : Transportation Research Record nr 562.

Chicago

Woltman HL, Youngblood WP, Ayad AA, Pinkney HFL and Harrison AL. 1976. Evaluation of retroreflective signing materials under the 3-beam head-lamp system. : Transportation Research Record nr 562.

Harvard

Woltman H., Youngblood W., Ayad A., Pinkney H. and Harrison A. (1976). Evaluation of retroreflective signing materials under the 3-beam head-lamp system. : Transportation Research Record nr 562.

MLA

Woltman HL, Youngblood WP, Ayad AA, Pinkney HFL and Harrison AL. Evaluation of retroreflective signing materials under the 3-beam head-lamp system. : Transportation Research Record nr 562. 1976.