Gaya APA
Sampson, Roy J.. (1974).
Economics : concepts, applications, analysis (text).
Boston:
Houghton Mifftin Company.
Gaya Chicago
Sampson, Roy J..
Economics : concepts, applications, analysis.
text
Boston:
Houghton Mifftin Company,
1974.
Tesis.
Gaya MLA
Sampson, Roy J..
Economics : concepts, applications, analysis.
text
Boston:
Houghton Mifftin Company,
1974.
Tesis.
Gaya Turabian
Sampson, Roy J..
Economics : concepts, applications, analysis.
text
Boston:
Houghton Mifftin Company,
1974.
Tesis.