APA (7th ed.) Citation

Hoelscher, R. P. (1952). Graphic aids in engineering computation. McGraw-Hill.

Chicago Style (17th ed.) Citation

Hoelscher, Randolph P. Graphic Aids in Engineering Computation. New York: McGraw-Hill, 1952.

MLA (9th ed.) Citation

Hoelscher, Randolph P. Graphic Aids in Engineering Computation. McGraw-Hill, 1952.