Gaya APA

Schell, , H, C. (1987). Substructure Cathodic Protection in Ontario : Field Trials 1982 to 1986 . : TRB.

Gaya MLA

Schell, , H., C.. "Substructure Cathodic Protection in Ontario : Field Trials 1982 to 1986". : TRB, 1987. Chart.