a. (1988). World Resousces 1988 - 89. New York: Basic books.
Trích dẫn kiểu Chicagoa. World Resousces 1988 - 89. New York: Basic books, 1988.
MLA引文a. World Resousces 1988 - 89. New York: Basic books, 1988.
警告:这些引文格式不一定是100%准确.
a. (1988). World Resousces 1988 - 89. New York: Basic books.
Trích dẫn kiểu Chicagoa. World Resousces 1988 - 89. New York: Basic books, 1988.
MLA引文a. World Resousces 1988 - 89. New York: Basic books, 1988.