Zavila O & University of Defence. Developments in the Classification of Aviation Accidents in Czechoslovak and Czech Military Aviation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zavila O و University of Defence. Developments in the Classification of Aviation Accidents in Czechoslovak and Czech Military Aviation.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Zavila O و University of Defence. Developments in the Classification of Aviation Accidents in Czechoslovak and Czech Military Aviation.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.