Nelson, A .
Dictionary of water and water engineering / Textual Documents A Nelson. - 1 / . - London : Butterworth Scientific , 1973. - 271 ; .
028.73553 / NEL/DI
Dictionary of water and water engineering / Textual Documents A Nelson. - 1 / . - London : Butterworth Scientific , 1973. - 271 ; .
028.73553 / NEL/DI