APA   Click to copy
Engelbart, D. C., & English, W. K. (1968). A research center for augmenting human intellect. In American Federation of Information Processing Societies: Proceedings of the {AFIPS} '68 Fall Joint Computer Conference, December 9-11, 1968, San Francisco, California, {USA} - Part {I} (Vol. 33, pp. 395–410). {AFIPS} / {ACM} / Thomson Book Company, Washington {D.C.}.

Chicago/Turabian   Click to copy
Engelbart, Douglas C., and William K. English. “A Research Center for Augmenting Human Intellect.” In American Federation of Information Processing Societies: Proceedings of the {AFIPS} '68 Fall Joint Computer Conference, December 9-11, 1968, San Francisco, California, {USA} - Part {I}, 33:395–410. {AFIPS} Conference Proceedings. {AFIPS} / {ACM} / Thomson Book Company, Washington {D.C.}, 1968.

MLA   Click to copy
Engelbart, Douglas C., and William K. English. “A Research Center for Augmenting Human Intellect.” American Federation of Information Processing Societies: Proceedings of the {AFIPS} '68 Fall Joint Computer Conference, December 9-11, 1968, San Francisco, California, {USA} - Part {I}, vol. 33, {AFIPS} / {ACM} / Thomson Book Company, Washington {D.C.}, 1968, pp. 395–410.

@inproceedings{engelbart1968a,
  title = {A research center for augmenting human intellect},
  year = {1968},
  pages = {395--410},
  publisher = {{AFIPS} / {ACM} / Thomson Book Company, Washington {D.C.}},
  series = {{AFIPS} Conference Proceedings},
  volume = {33},
  author = {Engelbart, Douglas C. and English, William K.},
  booktitle = {American Federation of Information Processing Societies: Proceedings of the {AFIPS} '68 Fall Joint Computer Conference, December 9-11, 1968, San Francisco, California, {USA} - Part {I}}
}