APA (7th ed.) Zitazioa

MASSER, I. (1978). Spatial representation and spatial interaction. Martinus Nijhoff.

Chicago Style (17th ed.) Zitazioa

MASSER, Ian. Spatial Representation and Spatial Interaction. Leiden: Martinus Nijhoff, 1978.

MLA (9th ed.) Zitazioa

MASSER, Ian. Spatial Representation and Spatial Interaction. Martinus Nijhoff, 1978.