APA-viite (7. p.)

Gray, J., Hughes, S., Cross, S., Gray, D., Clark, A., & Johnson, P. (2009). Influence of neutral protease concentration on the digestion of collagen VI within the human pancreas.

Chicago-viite (17. p.)

Gray, J., S. Hughes, SE Cross, D. Gray, A. Clark, ja P. Johnson. Influence of Neutral Protease Concentration on the Digestion of Collagen VI Within the Human Pancreas. 2009.

MLA-viite (9. p.)

Gray, J., et al. Influence of Neutral Protease Concentration on the Digestion of Collagen VI Within the Human Pancreas. 2009.