Dyfyniad APA

Barry O Hughes, Jay A Mench, & Michael C Appleby. (2004). Poultry behaviour and welfare. CABI.

Dyfyniad Arddull Chicago

Barry O Hughes, Jay A Mench, and Michael C Appleby. Poultry Behaviour and Welfare. CABI, 2004.

Dyfyniad MLA

Barry O Hughes, et al. Poultry Behaviour and Welfare. CABI, 2004.

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