AGRICOLA IND 92047816; presented at IAALD Symposium on "Advances in Information Technology", September, 1991, Beltsville, MD, The National CD-ROM Sampler: an Extension Reference Library is a multimedia CD-ROM product containing 14, 540 documents; 1,900 graphics; 71 comprehensive collections; 65 individual computer programs; and over fourteen minutes of audio. This product was developed through a cooperative agreement among the U.S. National Agricultural Library, Extension Service-USDA, Interactive Design and Development at Virginia Tech,and the University of Minnesota. The paper provides information on the design and development of this project. (original)