Não informado. (1969). Learning and Development. McGill University, Centre for Learning and Development.
Chicago-Zitierstil (17. Ausg.)Não informado. Learning and Development. Montreal, Canada: McGill University, Centre for Learning and Development, 1969.
MLA-Zitierstil (8. Ausg.)Não informado. Learning and Development. McGill University, Centre for Learning and Development, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.