Spark Publishing. (2008). SparkNotes guide to AP biology. Spark Publishing.
Lua i Stíl Chicago (17ú heag.)Spark Publishing. SparkNotes Guide to AP Biology. New York, NY: Spark Publishing, 2008.
Lua MLA (9ú heag.)Spark Publishing. SparkNotes Guide to AP Biology. Spark Publishing, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.