APA aipamena

Tardé, R. (1990). Toward sustainable agriculture in Central America: A research agenda.

Chicago Style aipamena

Tardé, R. Toward Sustainable Agriculture in Central America: A Research Agenda. 1990.

MLA aipamena

Tardé, R. Toward Sustainable Agriculture in Central America: A Research Agenda. 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.