APA

Hofmann R., Straube W., Klausch B., Kosayyer M. & El-Zehr T. (19750505). [Immunochemical investigations on the protein of the "pregnancy zone". VIII. Investigations of enzyme and isoenzyme activities of the pregnancy zone protein and its immunochemical detection in urine during normal and pathologic course of pregnancy (author's transl)]. : Archiv fur Gynakologie.

Chicago

Hofmann R, Straube W, Klausch B, Kosayyer M and El-Zehr T. 19750505. [Immunochemical investigations on the protein of the "pregnancy zone". VIII. Investigations of enzyme and isoenzyme activities of the pregnancy zone protein and its immunochemical detection in urine during normal and pathologic course of pregnancy (author's transl)]. : Archiv fur Gynakologie.

Harvard

Hofmann R., Straube W., Klausch B., Kosayyer M. and El-Zehr T. (19750505). [Immunochemical investigations on the protein of the "pregnancy zone". VIII. Investigations of enzyme and isoenzyme activities of the pregnancy zone protein and its immunochemical detection in urine during normal and pathologic course of pregnancy (author's transl)]. : Archiv fur Gynakologie.

MLA

Hofmann R, Straube W, Klausch B, Kosayyer M and El-Zehr T. [Immunochemical investigations on the protein of the "pregnancy zone". VIII. Investigations of enzyme and isoenzyme activities of the pregnancy zone protein and its immunochemical detection in urine during normal and pathologic course of pregnancy (author's transl)]. : Archiv fur Gynakologie. 19750505.