Henderson, D. W. (1996). Experiencing geometry on plane and sphere: Instructor's solution manual. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Henderson, David W. Experiencing Geometry on Plane and Sphere: Instructor's Solution Manual. Upper Saddle River, New Jersey: Prentice Hall, 1996.
Lua MLA (9ú heag.)Henderson, David W. Experiencing Geometry on Plane and Sphere: Instructor's Solution Manual. Prentice Hall, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.