(1973). Water resources in England and Wales [peta]. London : HMSO.
Chicago-čujuhus (17. p.)Water Resources in England and Wales [peta]. London : HMSO, 1973.
MLA-čujuhus (9. p.)Water Resources in England and Wales [peta]. London : HMSO, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.