(1958). Solving drainage problems: Suggestions for designing and installing corrugated steel drainage pipe made from Beth-Cu-Loy galvanized sheets (2nd ed.). Bethlehem: Bethlehem Steel Company.
Παραπομπή Chicago StyleSolving Drainage Problems: Suggestions for Designing and Installing Corrugated Steel Drainage Pipe Made From Beth-Cu-Loy Galvanized Sheets. 2nd ed. Bethlehem: Bethlehem Steel Company, 1958.
Παραπομπή MLASolving Drainage Problems: Suggestions for Designing and Installing Corrugated Steel Drainage Pipe Made From Beth-Cu-Loy Galvanized Sheets. 2nd ed. Bethlehem: Bethlehem Steel Company, 1958.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.