APA

Gambard J., . (1977). Economic study to select the width of central reserves for double carriageways in rural areas. : Geometric road design standards. Proceedings [OECD].

Chicago

Gambard JM, . 1977. Economic study to select the width of central reserves for double carriageways in rural areas. : Geometric road design standards. Proceedings [OECD].

Harvard

Gambard J., . (1977). Economic study to select the width of central reserves for double carriageways in rural areas. : Geometric road design standards. Proceedings [OECD].

MLA

Gambard JM, . Economic study to select the width of central reserves for double carriageways in rural areas. : Geometric road design standards. Proceedings [OECD]. 1977.