Cite
Calcium absorbability from spinach
MLA
Robert R. Recker, et al. “Calcium Absorbability from Spinach.” The American Journal of Clinical Nutrition, vol. 47, no. 4, Apr. 1988. 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=edsair&AN=edsair.doi.dedup.....7ef65a8e3206dfa2d8dc3af71a66b857&authtype=sso&custid=ns315887.
APA
Robert R. Recker, Connie M. Weaver, & Robert P. Heaney. (1988). Calcium absorbability from spinach. The American Journal of Clinical Nutrition, 47(4).
Chicago
Robert R. Recker, Connie M. Weaver, and Robert P. Heaney. 1988. “Calcium Absorbability from Spinach.” The American Journal of Clinical Nutrition 47 (4). 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=edsair&AN=edsair.doi.dedup.....7ef65a8e3206dfa2d8dc3af71a66b857&authtype=sso&custid=ns315887.