Fisher, R. B. On the borders of pigmy land (4th ed.). Marshall Brothers.
Citazione stile Chigago Style (17a edizione)Fisher, Ruth B. On the Borders of Pigmy Land. 4th ed. London: Marshall Brothers.
Citatione MLA (8a ed.)Fisher, Ruth B. On the Borders of Pigmy Land. 4th ed. Marshall Brothers.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.