Baker, J. (2013). 50 universe ideas you really need to know. Published for Barnes & Noble, Inc. by Quercus Editions Ltd..
Chicago-viite (17. p.)Baker, Joanne. 50 Universe Ideas You Really Need to Know. London: Published for Barnes & Noble, Inc. by Quercus Editions Ltd., 2013.
MLA-viite (9. p.)Baker, Joanne. 50 Universe Ideas You Really Need to Know. Published for Barnes & Noble, Inc. by Quercus Editions Ltd., 2013.
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