Stopes, M. C. (1918). The study of plant life (3th ed. [reprinted].). Blackie and Son.
Citazione stile Chigago Style (17a edizione)Stopes, Marie Carmichael. The Study of Plant Life. 3th ed. [reprinted]. London: Blackie and Son, 1918.
Citatione MLA (9a ed.)Stopes, Marie Carmichael. The Study of Plant Life. 3th ed. [reprinted]. Blackie and Son, 1918.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.