The OCIAC Update series is maintained in the Agricultural Communications Program records > "International" section > "OCIAC" file., Summary of V.L. Cabanilla and T.R. Hargrove, "The effectiveness among farmers of a farmer's primer on growing rice in two Philippine dialects." Research Paper Series No. 127, February 1987. Manila, Philippines.
Hal R. Taylor Collection, Reprint from Federal Extension Service, U.S. Department of Agriculture. 2 pages., Audience response to two ads run in Parents' Magazine offering a free booklet.