This manual is the product of many years of collaboration with colleagues interested in village chicken research and development and village chicken farmers from various parts of the world. Our thanks go to all the people who have worked with us in Bhutan, Cambodia, Ethiopia, Ghana, Indonesia, Malaysia, Mozambique, Nigeria, The Philippines, South Africa, Sri Lanka, Tanzania, Thailand, The Gambia, Vietnam, Zambia and Zimbabwe.
Robyn Alders & Peter Spradbrow. Controlling Newcastle Disease in Village Chickens A Field Manual, 2001.