APA Citatie

Wagner, S., Gladziwa, U., Gebel, M., Schüler, A., Freise, J., & Schmidt, F. W. (1991). Circadian pattern of intragastric acidity in duodenal ulcer patients: A study of variations in relation to ulcer activity.

Chicago Style citaat

Wagner, S., U. Gladziwa, M. Gebel, A. Schüler, J. Freise, en F W. Schmidt. Circadian Pattern of Intragastric Acidity in Duodenal Ulcer Patients: A Study of Variations in Relation to Ulcer Activity. 1991.

MLA citatie

Wagner, S., et al. Circadian Pattern of Intragastric Acidity in Duodenal Ulcer Patients: A Study of Variations in Relation to Ulcer Activity. 1991.