Παραπομπή APA

Sykes, J. (2005). Intellectual property in designs. LexixNexis.

Παραπομπή Chicago Style

Sykes, John. Intellectual Property in Designs. Edinburgh: LexixNexis, 2005.

Παραπομπή MLA

Sykes, John. Intellectual Property in Designs. LexixNexis, 2005.