Gaya APA
Phillips, James A.. (1977).
Elements of economics (text).
New York:
Macmillan Publishing.
Gaya Chicago
Phillips, James A..
Elements of economics.
text
New York:
Macmillan Publishing,
1977.
Tesis.
Gaya MLA
Phillips, James A..
Elements of economics.
text
New York:
Macmillan Publishing,
1977.
Tesis.
Gaya Turabian
Phillips, James A..
Elements of economics.
text
New York:
Macmillan Publishing,
1977.
Tesis.