APA aipamena

Ryans, J. K. (1990). Marketing Strategies for the New Europe: A North American perspective on 1992. USA: American Marketing Association.

Chicago Style aipamena

Ryans, John K. Marketing Strategies for the New Europe: A North American Perspective On 1992. USA: American Marketing Association, 1990.

MLA aipamena

Ryans, John K. Marketing Strategies for the New Europe: A North American Perspective On 1992. USA: American Marketing Association, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.