Boulding, K. E. (1988). The meaning of the 20th century: The great transition. Lanham: University Press of America.
Trích dẫn kiểu ChicagoBoulding, Kenneth E. The Meaning of the 20th Century: The Great Transition. Lanham: University Press of America, 1988.
MLA引文Boulding, Kenneth E. The Meaning of the 20th Century: The Great Transition. Lanham: University Press of America, 1988.
警告:这些引文格式不一定是100%准确.