Παραπομπή σε μορφή APA (7η εκδ.)

Holtby, K. L., Kerr, W. A., & Hobbs, J. E. (2007). International environmental liability and barriers to trade: Market access and biodiversity in the biosafety protocol. Edward Elgar.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Holtby, Kareen L., William A. Kerr, και Jill E. Hobbs. International Environmental Liability and Barriers to Trade: Market Access and Biodiversity in the Biosafety Protocol. Cheltenham, UK: Edward Elgar, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

Holtby, Kareen L., et al. International Environmental Liability and Barriers to Trade: Market Access and Biodiversity in the Biosafety Protocol. Edward Elgar, 2007.