Não informado. (1969). Learning and Development. McGill University, Centre for Learning and Development.
Citação do estilo Chicago (17ª ed.)Não informado. Learning and Development. Montreal, Canada: McGill University, Centre for Learning and Development, 1969.
Citação MLA (8ª ed.)Não informado. Learning and Development. McGill University, Centre for Learning and Development, 1969.
警告：这些引文格式不一定是100％准确.