W Worthington

EARLY RISERS: ESCALATORS CAME IN A VARIETY OF IMPERFECT FORMS FOR SEVERAL DECADES BEFORE A SENSIBLE STANDARD DESIG

W Worthington, 1989 .

ASSURING TOP QUALITY PRESTRESSING WIRE IN PCCP

W Worthington, R T Rundle, J Olden, 1998 .

PRESTRESSED CONCRETE PIPE INSPECTION AND MONITORING METHODS

W Worthington, 1992 .