APA (7th ed.) Citation

Hartree, D. R. (1949). Calculating instruments and machines / Douglas R. Hartree. Cambridge University Press.

Chicago Style (17th ed.) Citation

Hartree, Douglas R. Calculating Instruments and Machines / Douglas R. Hartree. Cambridge: Cambridge University Press, 1949.

MLA (9th ed.) Citation

Hartree, Douglas R. Calculating Instruments and Machines / Douglas R. Hartree. Cambridge University Press, 1949.

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