APA (7th ed.) Citation

Parr, R. E. (1969). Principles of mechanical design. McGraw-Hill.

Chicago Style (17th ed.) Citation

Parr, Robert E. Principles of Mechanical Design. New York: McGraw-Hill, 1969.

MLA (8th ed.) Citation

Parr, Robert E. Principles of Mechanical Design. McGraw-Hill, 1969.