APA
Summers Robert S,, . (2000). The jurisprudence of the law's form and substance. England: Ashgate Publishing Co, Ltd.
Chicago
Summers Robert S,, . 2000. The jurisprudence of the law's form and substance. England: Ashgate Publishing Co, Ltd.
Harvard
Summers Robert S,, . (2000). The jurisprudence of the law's form and substance. England: Ashgate Publishing Co, Ltd.
MLA
Summers Robert S,, . The jurisprudence of the law's form and substance. England: Ashgate Publishing Co, Ltd. 2000.