Winnifrith , J. (1962). Ministry of agriculture fisheries and food. Allen & Unwin.
Cita Chicago (17th ed.)Winnifrith , John. Ministry of Agriculture Fisheries and Food. London: Allen & Unwin, 1962.
Cita MLA (9th ed.)Winnifrith , John. Ministry of Agriculture Fisheries and Food. Allen & Unwin, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.