Excerpts: This extensive bibliography includes about 350 different formal publications or easily accessible other references. All are recommended for understanding the measurement, significance and contribution of natural resource capital accumulation to the growth and development of agriculture in the United States. Irrigation, drainage and conservation assets (IDC) are the main components of natural resource capital covered. But we also include some key references on flood protection, environmental controls, energy topics, and agricultural research. Concerning organization, the 350 separate items are classed into eleven specialized lists, but only the first seven groups are true subject-matter separations. They involve: capital and investment in general, economic growth and productivity (separated for the economy as a whole versus agriculture), general aspects of land use and resource development policy, mathematical/statistical techniques and evaluation methodologies, and some representative survey studies of natural resource investment. The seventh list is for the literature useful in developing capital stocks of specialized irrigation equipment and on-farm irrigation water supply facilities, a hitherto neglected area of agricultural research.