Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Johnston, R., Martinez, D., & Garcia, A. (2001). Were ancient seals secure? -.

Chicago Citation Edition Citation

Johnston, R.G, D.D Martinez, und A.R.E Garcia. Were Ancient Seals Secure? -. 2001.

MLA Citation Edition Citation

Johnston, R.G, et al. Were Ancient Seals Secure? -. 2001.