Παραπομπή APA

Lakshmanan,T R, & Nijkamp,Peter. (1993). Structure and change in the space economy. Springer-Verlag.

Παραπομπή Chicago Style

Lakshmanan,T R, και Nijkamp,Peter. Structure and Change in the Space Economy. Berlin: Springer-Verlag, 1993.

Παραπομπή MLA

Lakshmanan,T R, και Nijkamp,Peter. Structure and Change in the Space Economy. Springer-Verlag, 1993.