Howard, T., & Rifkin, J. (1978). Teacher's guide to Who should play God?: The artificial creation of life and what it means for the future of the human race. Dell Pub.
Čikaški stil citiranja (17. izdanje)Howard, Ted, i Jeremy Rifkin. Teacher's Guide to Who Should Play God?: The Artificial Creation of Life and What It Means for the Future of the Human Race. New York: Dell Pub, 1978.
MLA način citiranja (9. izdanje)Howard, Ted, i Jeremy Rifkin. Teacher's Guide to Who Should Play God?: The Artificial Creation of Life and What It Means for the Future of the Human Race. Dell Pub, 1978.
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