Fulton A R Drama and theatre - New Delhi Universal Book & Stationery Co. 1946 - P 556 21 CM Subjects--Topical Terms: English DramaTHE TRIHEDRAL ANGLE, THE SKAM QUADRILATERAL, THE TETRAHEDRON, SPECIAL CASES, THE INSERIBED SPHERE, MISCELLANEOUS PROPOSITIONS, THE GENERAL TETRAHEDRON Dewey Class. No.: 822 / FUL-D