APA-čujuhus (7. p.)
Brown, S., & Richards Janet Radcliffe. (1988). Introduction to philosophy (Units 13- 15): An arts foundation course. The open university.
Chicago-čujuhus (17. p.)
Brown, Stuart, juo Richards Janet Radcliffe. Introduction to Philosophy (Units 13- 15): An Arts Foundation Course. London: The open university, 1988.
MLA-čujuhus (9. p.)
Brown, Stuart, juo Richards Janet Radcliffe. Introduction to Philosophy (Units 13- 15): An Arts Foundation Course. The open university, 1988.
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