Waldron, Mark. “Agricultural Extension Worldwide. William M. Rivera and Susan G. Schram, Eds. 1987. London, New York, Sydney: Croom Helm Ltd. ”. Canadian Journal for the Study of Adult Education, vol. 3, no. 2, Nov. 1989, pp. 71-72, doi:10.56105/cjsae.v3i2.2349.