Não informado. (1971). ADAS Quarterly Review. Agricultural Development and Advisory Service.
Chicago-Zitierstil (17. Ausg.)Não informado. ADAS Quarterly Review. London: Agricultural Development and Advisory Service, 1971.
MLA-Zitierstil (8. Ausg.)Não informado. ADAS Quarterly Review. Agricultural Development and Advisory Service, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.