Russell, B. (1975). The conquest of happiness. এবড়ৎমব অষষবহ ্ টহরিহ.
Citazione stile Chigago Style (17a edizione)Russell, Bertrand. The Conquest of Happiness. London: এবড়ৎমব অষষবহ ্ টহরিহ, 1975.
Citatione MLA (9a ed.)Russell, Bertrand. The Conquest of Happiness. এবড়ৎমব অষষবহ ্ টহরিহ, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.