WALTON. (1970). Ground water resource evalution. McGraw-hill.
Chicago-čujuhus (17. p.)WALTON. Ground Water Resource Evalution. Tokyo: McGraw-hill, 1970.
MLA-čujuhus (9. p.)WALTON. Ground Water Resource Evalution. McGraw-hill, 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.