Boulding, K. E. (1970). Economics as a science. Tata McGraw-Hill.
Chicago Style aipamenaBoulding, Kenneth E. Economics as a Science. Bombay: Tata McGraw-Hill, 1970.
MLA aipamenaBoulding, Kenneth E. Economics as a Science. Tata McGraw-Hill, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.