Nicholson, E. (1968). Handbook to the conservation section of the international biological programme. Conservation of Terrestrial Biological Communities.
Citazione stile Chigago Style (17a edizione)Nicholson, E.M. Handbook to the Conservation Section of the International Biological Programme. London: Conservation of Terrestrial Biological Communities, 1968.
Citatione MLA (9a ed.)Nicholson, E.M. Handbook to the Conservation Section of the International Biological Programme. Conservation of Terrestrial Biological Communities, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.