E whakaatuhia ana ngā hua e 1 - 3 o te 3 mō te rapu '"Social problems"' Whakamahine hua
  1. 1
    ā- Gordon, William Clark, 1865-1936
    I whakaputaina 1966
    Ngā marau
    Tuhinga Whakapae Pukapuka
  2. 2
    ā- Wuscher, Hermann J.
    I whakaputaina 1980
    Ngā marau
    Tuhinga Whakapae Pukapuka
  3. 3
    Ngā marau
    Tuhinga Whakapae Pukapuka