APA aipamena

Gray, H. P. (1972). The economics of business investment abroad. New York: Crane, Russak.

Chicago Style aipamena

Gray, H. Peter. The Economics of Business Investment Abroad. New York: Crane, Russak, 1972.

MLA aipamena

Gray, H. Peter. The Economics of Business Investment Abroad. New York: Crane, Russak, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.