Giesbrecht, M. G. (1972). Evolution of economic society. W.H Freeman and company.
Chicago Style aipamenaGiesbrecht, Martin Gerhard. Evolution of Economic Society. San Francisco: W.H Freeman and company, 1972.
MLA aipamenaGiesbrecht, Martin Gerhard. Evolution of Economic Society. W.H Freeman and company, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.