Não informado. (1969). Man-environment Systems. Association for the Study of Man-Environment Relations.
Citação do estilo Chicago (17ª ed.)Não informado. Man-environment Systems. Orange, NJ: Association for the Study of Man-Environment Relations, 1969.
Citação MLA (8ª ed.)Não informado. Man-environment Systems. Association for the Study of Man-Environment Relations, 1969.
警告：这些引文格式不一定是100％准确.