Dyfyniad APA

 Walsh, G. (2007).  Pharmaceutical biotechnology: Concepts and applications.  John Wiley & Sons.

Dyfyniad Arddull Chicago

 Walsh, Gary.  Pharmaceutical Biotechnology: Concepts and Applications.  John Wiley & Sons, 2007.

Dyfyniad MLA

 Walsh, Gary.  Pharmaceutical Biotechnology: Concepts and Applications.  John Wiley & Sons, 2007.

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