APA
Pickering C D G,, . (1998). Trade marks in theory and practice. Oxford: Hart Publishing.
Chicago
Pickering C D G,, . 1998. Trade marks in theory and practice. Oxford: Hart Publishing.
Harvard
Pickering C D G,, . (1998). Trade marks in theory and practice. Oxford: Hart Publishing.
MLA
Pickering C D G,, . Trade marks in theory and practice. Oxford: Hart Publishing. 1998.