TY - BOOK AU - National Research Council TI - Infrastructure for the 21st Century: Framework for a Research Agenda SN - 978-0-309-07814-6 DO - 10.17226/798 PY - 1987 UR - https://nap.nationalacademies.org/catalog/798/infrastructure-for-the-21st-century-framework-for-a-research-agenda PB - The National Academies Press CY - Washington, DC LA - English KW - Transportation and Infrastructure ER -