Lua APA (7ú heag.)
Cohen, D. (1987). Precalculus: A problems - Oriented approach (2nd ed.). West Publishing Co..
Lua i Stíl Chicago (17ú heag.)
Cohen, David. Precalculus: A Problems - Oriented Approach. 2nd ed. St Paul: West Publishing Co., 1987.
Lua MLA (9ú heag.)
Cohen, David. Precalculus: A Problems - Oriented Approach. 2nd ed. West Publishing Co., 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.