Hornung W., . (1981). Metric Architectural Construction Drafting & design Fundamentals. New Jercey: Prentice hall inc.
Hornung William, . 1981. Metric Architectural Construction Drafting & design Fundamentals. New Jercey: Prentice hall inc.
Hornung William, . Metric Architectural Construction Drafting & design Fundamentals. New Jercey: Prentice hall inc. 1981.
