Dyfyniad APA

Spark Publishing. (2008). SparkNotes guide to AP biology. Spark Publishing.

Dyfyniad Arddull Chicago

Spark Publishing. SparkNotes Guide to AP Biology. New York, NY: Spark Publishing, 2008.

Dyfyniad MLA

Spark Publishing. SparkNotes Guide to AP Biology. Spark Publishing, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.