APA (7th ed.) Citation

Spain, J. D. (1971). An introduction to digital computer simulation for biologists. J.D. Spain.

Chicago Style (17th ed.) Citation

Spain, James D. An Introduction to Digital Computer Simulation for Biologists. Houghton, Mich.: J.D. Spain, 1971.

MLA (8th ed.) Citation

Spain, James D. An Introduction to Digital Computer Simulation for Biologists. J.D. Spain, 1971.