Gaya APA

SHARP, Ansel M.. (1988). Economics of social issues (ke-8). United States of America: United States of America.

Gaya Chicago

SHARP, Ansel M.. Economics of social issues. ke-8 United States of America: United States of America, 1988. Text.

Gaya MLA

SHARP, Ansel M.. Economics of social issues. ke-8 United States of America: United States of America, 1988. Text.

Gaya Turabian

SHARP, Ansel M.. Economics of social issues. ke-8 United States of America: United States of America, 1988. Print.