Gaya APA
Marshall, Alfred. (1949).
Principles of Economics : An Introdury volume (kedelapan).
New York:
The Macmillan Company.
Gaya Chicago
Marshall, Alfred.
Principles of Economics : An Introdury volume.
kedelapan
New York:
The Macmillan Company,
1949.
Texts.
Gaya MLA
Marshall, Alfred.
Principles of Economics : An Introdury volume.
kedelapan
New York:
The Macmillan Company,
1949.
Texts.
Gaya Turabian
Marshall, Alfred.
Principles of Economics : An Introdury volume.
kedelapan
New York:
The Macmillan Company,
1949.
Texts.