APA (7th ed.) Citation

Barras, R. (1975). A spatial interaction model of Cleveland / by R. Barras. Planning Research Applications Group.

Chicago Style (17th ed.) Citation

Barras, R. A Spatial Interaction Model of Cleveland / by R. Barras. Planning Research Applications Group, 1975.

MLA (9th ed.) Citation

Barras, R. A Spatial Interaction Model of Cleveland / by R. Barras. Planning Research Applications Group, 1975.

Warning: These citations may not always be 100% accurate.