This bibliography presents a compilation of Agriculture and Agronomy doctoral research for the years 1973-1976. Each of the 3,386 doctoral dissertations cited herein has been accepted by accredited degree-granting universities in North America and published by University Microfilms International (UMI). Dissertations are arranged alphabetically in author sequence under each subject heading, from Agriculture, General to Zoology. Each entry includes a full title, degree earned, degree-granting institution, date of degree, number of dissertation pages, reference to the 600-word abstract location in Dissertation Abstracts International by volume, issue, and page number, and an order number for acquiring a full text reproduction of the dissertation. Complete full text copy ordering information follows. A listing of Masters theses, also available from UMI, follows the dissertation section. These theses are arranged under 23 subject headings comprising Earth Sciences, Biological Sciences, and Allied Subjects. Each title is abstracted in Masters Abstracts and available as full text reproductions from UMI. Subject catalogs such as this one are compiled and released periodically for scholars and librarians as basic research tools and ordering guides. (Author/MA)