Style de citation APA (7e éd.)

Richardson, A., & Ritchie, J. B. (1989). Letting go: Dilemmas for parents whose son or daughter has a mental handicap. Open University Press.

Style de citation Chicago (17e éd.)

Richardson, Ann, et Jane Beaglehole Ritchie. Letting Go: Dilemmas for Parents Whose Son or Daughter Has a Mental Handicap. Milton Keynes [England] ; Philadelphia: Open University Press, 1989.

Style de citation MLA (8e éd.)

Richardson, Ann, et Jane Beaglehole Ritchie. Letting Go: Dilemmas for Parents Whose Son or Daughter Has a Mental Handicap. Open University Press, 1989.