Cite
Fetal blood studies. VII. The oxygen pressure gradient between the maternal and fetal bloods of the human in normal and abnormal pregnancy.
MLA
Prystowsky, H. “Fetal Blood Studies. VII. The Oxygen Pressure Gradient between the Maternal and Fetal Bloods of the Human in Normal and Abnormal Pregnancy.” Bulletin of the Johns Hopkins Hospital, vol. 101, no. 1, July 1957, pp. 48–56. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=13436935&authtype=sso&custid=ns315887.
APA
Prystowsky, H. (1957). Fetal blood studies. VII. The oxygen pressure gradient between the maternal and fetal bloods of the human in normal and abnormal pregnancy. Bulletin of the Johns Hopkins Hospital, 101(1), 48–56.
Chicago
Prystowsky, H. 1957. “Fetal Blood Studies. VII. The Oxygen Pressure Gradient between the Maternal and Fetal Bloods of the Human in Normal and Abnormal Pregnancy.” Bulletin of the Johns Hopkins Hospital 101 (1): 48–56. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=cmedm&AN=13436935&authtype=sso&custid=ns315887.