Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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