APA (7th ed.) Citation

Spencer, H. C., Hill, ., & Loving, R. O. (1975). Engineering Graphics Problems Book (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Spencer, Henry Cecil, Hill, and Robert Olin Loving. Engineering Graphics Problems Book. 2nd ed. New York: McGraw-Hill, 1975.

MLA (9th ed.) Citation

Spencer, Henry Cecil, et al. Engineering Graphics Problems Book. 2nd ed. McGraw-Hill, 1975.