@article{Hammond, author = {Hammond, P.}, title = {Charity: Altruism or Cooperatice Egoism?}, series = {Phelps, E. S. (Ed.): Altruism, morality and economic theory, New York (Russell Sage Foundation) 1975, pp. 115-132.}, journal = {Phelps, E. S. (Ed.): Altruism, morality and economic theory, New York (Russell Sage Foundation) 1975, pp. 115-132.}, language = {en} }