APA
Committee on Water Well Standards National Water Well Association, . (1981). Water well specifications. Berkeley, Cal: Premier Press.
Chicago
Committee on Water Well Standards National Water Well Association, . 1981. Water well specifications. Berkeley, Cal: Premier Press.
Harvard
Committee on Water Well Standards National Water Well Association, . (1981). Water well specifications. Berkeley, Cal: Premier Press.
MLA
Committee on Water Well Standards National Water Well Association, . Water well specifications. Berkeley, Cal: Premier Press. 1981.
