Tittel, J. N., & Steller, H. (2000). A comparison of programmed cell death between species. BioMed Central.
استشهاد بنمط شيكاغوTittel, Jan N., و Hermann Steller. A Comparison of Programmed Cell Death between Species. BioMed Central, 2000.
MLA استشهادTittel, Jan N., و Hermann Steller. A Comparison of Programmed Cell Death between Species. BioMed Central, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.