APA aipamena

Adams, M. E. (1982). Agricultural extension in developing countries. Longman.

Chicago Style aipamena

Adams, M. E. Agricultural Extension in Developing Countries. Burnt Mill, Harlow, Essex: Longman, 1982.

MLA aipamena

Adams, M. E. Agricultural Extension in Developing Countries. Longman, 1982.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.