Cali, J Paul Standard reference materials: Guide to United States reference materials - Washington, D.C.: Dept. of Commerce, National Bureau of Standards, Institute for Materials Research, 1978 - viii, 46p. - NBS special publication, 260-57 . Subjects--Topical Terms: Materials--Standards Subjects--Index Terms: Physical measurements Universal Decimal Class. No.: R 389.6(73) / L8