Παραπομπή APA

Ullmann. (2007). Biotechnology and biochemical engineering. Wiley -VCH.

Παραπομπή Chicago Style

Ullmann. Biotechnology and Biochemical Engineering. Weinheim: Wiley -VCH, 2007.

Παραπομπή MLA

Ullmann. Biotechnology and Biochemical Engineering. Wiley -VCH, 2007.