Gaya APA
Isard, Walter. (1975).
Introduction to regional science / Walter Isard .
:
Englewood Cliffs : Prentice-Hall.
Gaya Chicago
Isard, Walter.
Introduction to regional science / Walter Isard.
:
Englewood Cliffs : Prentice-Hall,
1975.
Buku.
Gaya MLA
Isard, Walter.
Introduction to regional science / Walter Isard.
:
Englewood Cliffs : Prentice-Hall,
1975.
Buku.
Gaya Turabian
Isard, Walter.
Introduction to regional science / Walter Isard.
:
Englewood Cliffs : Prentice-Hall,
1975.
Buku.