TY - BOOK AU - Allen,Jack TI - Scale models in hydraulic engineering .. U1 - 627 PY - 1947///] CY - London PB - Longmans KW - Block diagrams KW - Hydraulic engineering KW - Machinery KW - Models KW - MCE N1 - 0; 0; 0; 627_000000000000000_ALL ER -