Gaya APA
Barbour, I.
(1992).
Ethics in an age of technology the Gifford lectures 1989-1991 volume 2
.
:
scm press.
Gaya MLA
Barbour, Ian.
"Ethics in an age of technology the Gifford lectures 1989-1991 volume 2".
:
scm press,
1992.
Text.