Cita APA (7a ed.)

Wilkins, R. (1977). Green crop fractionation (1st edition.). BGS.

Cita Chicago Style (17a ed.)

Wilkins, R.J. Green Crop Fractionation. 1st edition. Hurley: BGS, 1977.

Cita MLA (8a ed.)

Wilkins, R.J. Green Crop Fractionation. 1st edition. BGS, 1977.