Tohutoro APA (7th ed.)
Carlson, R., & Goldman, B. (1991). 2020 Visions: Long view of a changing world. Stanford Alumni Association.
Tohutoru Kātū Chicago (17th ed.)
Carlson, Richard, me Bruce Goldman. 2020 Visions: Long View of a Changing World. USA: Stanford Alumni Association, 1991.
Tohutoro MLA (9th ed.)
Carlson, Richard, me Bruce Goldman. 2020 Visions: Long View of a Changing World. Stanford Alumni Association, 1991.
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