APA

Vandervoort C. G., . (1986). On the optimum level of effort for evaluation low-volume rural road projects in developing countries. : Transportation Research Record.

Chicago

Vandervoort Charles G, . 1986. On the optimum level of effort for evaluation low-volume rural road projects in developing countries. : Transportation Research Record.

Harvard

Vandervoort C. G., . (1986). On the optimum level of effort for evaluation low-volume rural road projects in developing countries. : Transportation Research Record.

MLA

Vandervoort Charles G, . On the optimum level of effort for evaluation low-volume rural road projects in developing countries. : Transportation Research Record. 1986.