University of Pennsylvania. School of Dental Medicine & University of Pennsylvania. School of Dentistry. The Penn dental journal. University Printing Office.
Cita Chicago Style (17a ed.)University of Pennsylvania. School of Dental Medicine y University of Pennsylvania. School of Dentistry. The Penn Dental Journal. Philadelphia: University Printing Office.
Cita MLA (9a ed.)University of Pennsylvania. School of Dental Medicine y University of Pennsylvania. School of Dentistry. The Penn Dental Journal. University Printing Office.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.