APA

Swobodnik W., Ortmann H., Wechsler J. G., Teckentrupp K., Klüppelberg U., Wenzel H. & Ditschuneit H. (19861021). [Sonography of gallbladder calculi: possibilities and limits in the selection of gallstone patients suitable for conservative lysis]. : Ultraschall in der Medizin (Stuttgart, Germany : 1980).

Chicago

Swobodnik W, Ortmann H, Wechsler J G, Teckentrupp K, Klüppelberg U, Wenzel H and Ditschuneit H. 19861021. [Sonography of gallbladder calculi: possibilities and limits in the selection of gallstone patients suitable for conservative lysis]. : Ultraschall in der Medizin (Stuttgart, Germany : 1980).

Harvard

Swobodnik W., Ortmann H., Wechsler J. G., Teckentrupp K., Klüppelberg U., Wenzel H. and Ditschuneit H. (19861021). [Sonography of gallbladder calculi: possibilities and limits in the selection of gallstone patients suitable for conservative lysis]. : Ultraschall in der Medizin (Stuttgart, Germany : 1980).

MLA

Swobodnik W, Ortmann H, Wechsler J G, Teckentrupp K, Klüppelberg U, Wenzel H and Ditschuneit H. [Sonography of gallbladder calculi: possibilities and limits in the selection of gallstone patients suitable for conservative lysis]. : Ultraschall in der Medizin (Stuttgart, Germany : 1980). 19861021.