APA (7e ed.) Bronvermelding

ebrary, Inc, Poultry Science Symposium, & Perry, G. C. (2004). Welfare of the laying hen. CABI Pub..

Chicago (17e ed.) Bronvermelding

ebrary, Inc, Poultry Science Symposium, en G. C. Perry. Welfare of the Laying Hen. Wallingford: CABI Pub., 2004.

MLA (9e ed.) Bronvermelding

ebrary, Inc, et al. Welfare of the Laying Hen. CABI Pub., 2004.