APA-ийн эшлэл(7 дахь хэвлэлт)

GUNNARSSON, J. (1977). Production Systems and hierarchies of centres: The relationship between spatial and economic structures. Martinus Nijhoff.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

GUNNARSSON, Jan. Production Systems and Hierarchies of Centres: The Relationship Between Spatial and Economic Structures. Leiden: Martinus Nijhoff, 1977.

MLA -ийн эшлэл (9 дэх хэвлэлт)

GUNNARSSON, Jan. Production Systems and Hierarchies of Centres: The Relationship Between Spatial and Economic Structures. Martinus Nijhoff, 1977.