Fischer, J. M., & John Martin Fischer; Mark Ravizza. (1992). Ethics: Poroblems and principles. Fort Worth: Harcourt Brace Jovanovich College Publishers.
استشهاد بنمط شيكاغوFischer, John Martin, و John Martin Fischer; Mark Ravizza. Ethics: Poroblems and Principles. Fort Worth: Harcourt Brace Jovanovich College Publishers, 1992.
MLA استشهادFischer, John Martin, و John Martin Fischer; Mark Ravizza. Ethics: Poroblems and Principles. Fort Worth: Harcourt Brace Jovanovich College Publishers, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.