Scharff, R. (1995). Roofing handbook. New York: McGraw- Hill.
Chicago Style CitationScharff, Robert. Roofing Handbook. New York: McGraw- Hill, 1995.
Cita MLAScharff, Robert. Roofing Handbook. New York: McGraw- Hill, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.