Drainage design factors. 28 questions and answers. Rome: 1980 VI, 52 p. : tab.
Drainage design factors. 28 questions and answers. Rome: 1980 VI, 52 p. : tab.
(1980) Drainage design factors. 28 questions and answers, Rome: VI, 52 p. : tab.
(1980). Drainage design factors. 28 questions and answers. Based on the Expert consultation on drainage design factors. Rome, 22-29 October 1979. Rome: VI, 52 p. : tab.
Drainage design factors. 28 questions and answers: Based on the Expert consultation on drainage design factors. Rome, 22-29 October 1979. Rome: 1980. p. VI, 52 p. : tab.