Garwood, E., Tyson, K., Clement, C. A comparison of yield and soil conditions during 20 years of grass and arable cropping. Hurley: 1977 89 p. : ill.
Garwood, E., Tyson, K., Clement, C. A comparison of yield and soil conditions during 20 years of grass and arable cropping. Hurley: 1977 89 p. : ill.
Garwood, E., Tyson, K., Clement, C. (1977) A comparison of yield and soil conditions during 20 years of grass and arable cropping, Hurley: 89 p. : ill.
Garwood, E., Tyson, K., & Clement, C. (1977). A comparison of yield and soil conditions during 20 years of grass and arable cropping. Hurley: 89 p. : ill.
Garwood E, Tyson K, Clement C. A comparison of yield and soil conditions during 20 years of grass and arable cropping. Hurley: 1977. p. 89 p. : ill.