APA ציטוט

Usher , A. P. (1929). A history of mechanical inventions. McGraw-Hill.

Chicago Style (17th ed.) Citation

Usher , Abbott Payson. A History of Mechanical Inventions. New York: McGraw-Hill, 1929.

ציטוט MLA

Usher , Abbott Payson. A History of Mechanical Inventions. McGraw-Hill, 1929.