APA ציטוט

Koëter, G. H., Kraan, J., Boorsma, M., Jonkman, J. H., & van der Mark, T. W. (1989). Effect of theophylline and enprofylline on bronchial hyperresponsiveness.

Citação norma Chicago

Koëter, G H., J. Kraan, M. Boorsma, J H. Jonkman, and T W. van der Mark. Effect of Theophylline and Enprofylline On Bronchial Hyperresponsiveness. 1989.

ציטוט MLA

Koëter, G H., et al. Effect of Theophylline and Enprofylline On Bronchial Hyperresponsiveness. 1989.