@article{1374450,
      author = {Bentley, Gillian R., and Mace, Ruth.},
      url = {http://library.usi.edu/record/1374450},
      title = {Substitute parents: biological and social perspective on  alloparenting across human societies /},
      publisher = {Berghahn Books,},
      recid = {1374450},
      pages = {xviii, 354 p. :},
      address = {New York :},
      year = {2009},
}