446 U.S. 608 446 U.S. 608 100 S.Ct. 1905 64 L.Ed.2d 548 Cecil D. ANDRUS, Secretary of the Interior, et al., Petitioners,v.GLOVER CONSTRUCTION COMPANY. No. 79-48. Argued March 24, 1980. Decided May 27, 1980. Syllabus Held : The Buy Indian Act, which permits the Secretary of the Interior to purchase “the products of Indian industry […]