APA (7th ed.) Citation

Gale, M. T., & Knop, K. (1980). Surface-relief images for color reproduction. Focal Pr.

Chicago Style (17th ed.) Citation

Gale, M. T., and Karl Knop. Surface-relief Images for Color Reproduction. London: Focal Pr, 1980.

MLA (9th ed.) Citation

Gale, M. T., and Karl Knop. Surface-relief Images for Color Reproduction. Focal Pr, 1980.

Warning: These citations may not always be 100% accurate.