Spedding, C. R. W. (1979). An Introduction to Agricultural Systems. Agricultural Science Publishers.
Cita Chicago Style (17a ed.)Spedding, C. R. W. An Introduction to Agricultural Systems. London: Agricultural Science Publishers, 1979.
Cita MLA (9a ed.)Spedding, C. R. W. An Introduction to Agricultural Systems. Agricultural Science Publishers, 1979.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.