APA引文

Hansen,Pierre. (1987). Systems of cities and facility location. Harwood Academic.

Chicago Edition Citation

Hansen,Pierre. Systems of Cities and Facility Location. London: Harwood Academic, 1987.

MLA引文

Hansen,Pierre. Systems of Cities and Facility Location. Harwood Academic, 1987.

警告：這些引文格式不一定是100％准確.