Hawkins, N. (1902). Self-help mechanical drawing: An educational treatise. T. Audel & co..
Chicago Style (17th ed.) CitationHawkins, N. Self-help Mechanical Drawing: An Educational Treatise. New York: T. Audel & co., 1902.
ציטוט MLAHawkins, N. Self-help Mechanical Drawing: An Educational Treatise. T. Audel & co., 1902.
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