APA
LIEWELYN M. A. A. M., . (2006). EUROPEAN PLANT INTELLECTUAL PROPERTY. OREGON: HART PUBLISHING.
Chicago
LIEWELYN MARGARET AND ADCOCK MIKE, . 2006. EUROPEAN PLANT INTELLECTUAL PROPERTY. OREGON: HART PUBLISHING.
Harvard
LIEWELYN M. A. A. M., . (2006). EUROPEAN PLANT INTELLECTUAL PROPERTY. OREGON: HART PUBLISHING.
MLA
LIEWELYN MARGARET AND ADCOCK MIKE, . EUROPEAN PLANT INTELLECTUAL PROPERTY. OREGON: HART PUBLISHING. 2006.