Zühlke, L., & Engel, M. (2011). Letter to the editor. Dove Medical Press.
Citação norma ChicagoZühlke, LJ, and ME Engel. Letter to the Editor. Dove Medical Press, 2011.
MLA CitationZühlke, LJ, and ME Engel. Letter to the Editor. Dove Medical Press, 2011.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.