Dyfyniad APA

Llewellyn, L. J., Evans, M. R., & Palmer, S. R. (1998). Use of sequential case-control studies to investigate a community Salmonella outbreak in Wales. BMJ Group.

Dyfyniad Arddull Chicago

Llewellyn, L. J., M. R. Evans, and S. R. Palmer. Use of Sequential Case-control Studies to Investigate a Community Salmonella Outbreak in Wales. BMJ Group, 1998.

Dyfyniad MLA

Llewellyn, L. J., M. R. Evans, and S. R. Palmer. Use of Sequential Case-control Studies to Investigate a Community Salmonella Outbreak in Wales. BMJ Group, 1998.

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